Wheel of Fortune is a television game show originally devised by Merv Griffin which runs in local editions around the world. It involves 3 contestants competing against each other to solve a word puzzle similar to Hangman. The name of the show comes from the large wheel that determines the dollar amounts and prizes won (or lost) by the contestants.

The highly-successful format has been seen daily in one form or another since its NBC debut in 1975. The current U.S. version, distributed by King World since 1983, is the longest-running game show in syndication.

Versions

United States
The early pilot for Wheel was called Shopper's Bazaar; Edd Byrnes and Chuck Woolery hosted pilot episodes in 1974. The theme song used in the 1974 pilot was "Give It One" by Maynard Ferguson.

Wheel debuted on January 6, 1975, on NBC; it was put on the air as compensation for cancelling Jeopardy! (which Griffin produced) with one year remaining on its contract. Woolery was the show's original host, and Susan Stafford was the original hostess. Announcer Charlie O'Donnell has been "the voice of the Wheel" since episode one in 1975, save for a few years in the 1980s when Jack Clark announced due to O'Donnell's obligations to other shows. After Clark passed away in 1988, Los Angeles-area disc jockey MG Kelly briefly filled in until O'Donnell, who was still under contract with Chuck Barris Productions, was able to take over permanently.

The theme song used from 1975 to July 1983 is called "Big Wheels" by Alan Thicke.

Chuck Woolery left Wheel on December 25, 1981, after a salary dispute with Merv Griffin. Three days later, Pat Sajak replaced him. Susan Stafford left a year later to pursue volunteer work. She was replaced by Vanna White. Sajak left the daytime show on January 9, 1989, to do a nighttime talk show for CBS that would fail after one year. Former football player Rolf Benirschke hosted the daytime show until NBC dropped it on June 30, 1989; Bob Goen became its host when it moved to CBS on July 17 of that year. The daytime show moved back to NBC on January 14, 1991, and was canceled for good on September 20 of that year.

A nighttime version of Wheel, which is syndicated to stations around the country, debuted on September 19, 1983. This version still airs today, and after two decades the show continues to have the highest Nielsen ratings of any syndicated program. Pat Sajak and Vanna White have hosted the nighttime version since its debut. The original theme song from 1983-1989 is called "Changing Keys" by Merv Griffin. All others are alterations of this theme from 1989-92, 1992-94, 1994-97, 1997-2000, and a somewhat new variation from 2000-present.

When the show first aired, the money the contestants won had to be used to shop amongst prizes on the TV show, but now the game is played for cash. Eliminating shopping sped up the game, and allowed more time to plug the big prizes, such as cars. Shopping was eliminated beginning with the syndicated Wheel's 1987–88 season premiere, though it would remain on the daytime version until 1989, when the show moved from NBC to CBS.

The original puzzleboard was three rows consisting of 13 trilons on each row. On December 21, 1981, a new four-row puzzleboard (consisting of 11 trilons on the top and bottom rows and 13 trilons in the middle rows) was introduced, allowing for bigger puzzles and more cash to be given away. This puzzleboard would remain the same, except for light border changes and the "half-trilons" on the sides of the board being removed on road shows, and in 1994 and 1995. In 1997, the original board for displaying the letters was replaced with a digital electronic puzzle board, touching the letter spaces instead of turning them. Also, when the puzzle is solved, instead of the hostess turning the hidden letters to reveal the entire puzzle, the missing letters electronically fill in themselves. A fill-in-the-blank puzzle is displayed on a grid of video displays in front of the players. The puzzle board itself has 52 spaces, divided into four rows (with 12 spaces on the top and bottom rows and 14 spaces in the middle rows, making it one column wider than the old trilon board; occasionally puzzles will use up almost all of the board).

(Actually, the old four-row trilon puzzle had 52 spaces like today's board, with 13 in each row; the light border got in the way with the spaces in the corners, leaving only 11 trilons in the top and bottom rows)

In 2002, the tote boards that showed the totals for each player were changed from eggcrate lights to monitors; the eggcrate lights had been in use since 1975. Incidentally, the eggcrate display had room for the "$" sign and four digits in 1975-1976 (although the "$" sign could be removed in the rare event someone had more than $10,000). Sometime around 1976, the display was changed to allow for five-digit figures (along with the "$" sign); six-digit figures have never been achieved in maingame play, although the eggcrate display was again changed in the late 80s or early 90s so a six-digit figure could be displayed with the dollar sign. In 2003, as part of the 21st season, the entire studio was revamped. The gold, glitzy decoration that surrounded the wheel was changed to a neon blue decoration. The puzzleboard's border was changed to match that of the wheel.

In November 2003, Wheel celebrated its 4,000th episode in syndication with a retrospective of the series. One of the clips included rare footage of a circa-1978 Wheel opening, which featured the "Big Wheels" theme, the prize sets and Charlie O'Donnell's opening-spiel (including a shot of a Ford Fairmont station wagon, one of the prizes offered on that day's episode).

The series was produced in the U.S. by Merv Griffin's company, Califon Productions, until 2002. When Griffin went into retirement that year (but kept a small financial stake), Sony Pictures Television, which had bought Griffin's company several years earlier, took over fully. Wheel is syndicated by King World, although Griffin, through Califon Productions, still holds the show's copyright -- which has been lucrative through its use in casino and lottery games.

Wheel is notable for having 'theme weeks' in which all of the set decorations revolve around a common theme. Other weeks invite sports stars to play for charity along with some of their fans.

On one of these theme weeks, College Week in 1996, Pat had laryngitis for almost that whole week, which became so bad that on the Monday episode (aired on November 21), Pat and Vanna had to switch roles for the bonus round. They switched back the next day. (Source: The Wheel of Fortune Timeline)


Road shows
Frequently, Wheel went "on location" to cities across the United States. The first of these shows was taped in the fall of 1988 at Radio City Music Hall in New York, New York. Through the years, other stops have included Las Vegas, Honolulu, Hawaii, Philadelphia, Nashville, Fox Theatre, Seattle, San Diego, San Francisco, Chicago, Washington D.C, Miami, and more.

The November 7, 2000 airing was interesting especially since the taping was in Washington, DC with it being a very close election between George Bush and Al Gore. Contestant Raymond Lee made it entertaining with his answer to a particular puzzle. The show was again aired on the following Saturday. Due to all the election coverage it was not aired in many places on Election Tuesday.

Perhaps the most poignant of these "road" shows was New Orleans, Louisiana. Two weeks of shows were taped at the New Orleans Convention Center in August 2005, just days before Hurricane Katrina struck the region and caused incredible devestation to the city and Gulf Coast region. A third week of shows was cancelled, and Wheel's production team barely made it out of New Orleans before the storm struck. In pre-taped promos that appeared before each "New Orleans" episode, Sajak and White urged viewers to contribute to hurricane relief charities via the American Red Cross (via the show's Web site), and noted that the show would provide up to $100,000 in matching funds; they also commented the shows were a celebration of what the city once was and would someday become again. Wheel has always had a special opening theme for on-the-road shows. The very first on-the-road theme song was made specially for those shows; it is unknown at what point the same on-the-road theme was used over and over again.


United Kingdom
The British version ran from 1988 to 2001, produced by Scottish Television for the ITV network. It was hosted by Nicky Campbell, Bradley Walsh, John Leslie and Paul Hendy with Angela Ekeate, Carol Smillie, Jenny Powell and Terri Seymour in turn being co-hosts. Steve Hamilton was the announcer.


Australia
The current Australian version began in 1981 on the Seven Network at ADS-7. The show moved to SAS-7 when the 2 stations swapped callsigns & affiliations at the end of 1987. It then moved to ATN-7 in 1996, where it has stayed ever since. The first host was Ernie Sigley, who hosted from 1981-84. Other hosts included John Burgess (from 1984-96), Tony Barber (1996), Rob Elliott (from 1997-2004) and Steve Oemcke (from 2004-2005). Co-host Adriana Xenides became the longest serving game show hostess in the world having featured on Australia's Wheel Of Fortune from 1981 until early 1999; a total of 18 years. This record stood until 2001 when Vanna White surpassed that total. Sophie Falkiner was co-host from 1999-2005. John Deeks has been the announcer since 1984. In mid-2005, the show was rested, with Seven filling its 5pm timeslot with reruns of M*A*S*H. In December 2005, rumours abounded of the Wheel's return in 2006. On the 19th January 2006, Seven officially announced Wheel of Fortune's new host, Larry Emdur, with Laura Csortan as co-host.


Germany
There have been three Glücksrad versions in Germany: 1988-1998 on Sat.1 hosted by Frederic Meisner and Peter Bond, 1998-2002 on Kabel 1 hosted by Frederic Meisner (-2001) and Thomas Ohrner (2002), 2004 on 9 Live hosted again by Frederic Meisner.


New Zealand
There was a version in New Zealand with Phillip Leishman as host and Lana Coc-Kroft as co-host. This version ran from 1991 to around 1996.


Other countries
Some other countries that air "Wheel of Fortune", and the titles used, include Belgium (Rad van Fortuin), Malaysia (Roda Impian), Brazil (either Roletrando Novelas or Roda a Roda), Vietnam (Chiếc nón kỳ diệu), Ecuador, Spain (both use La Ruleta de la Fortuna), Italy (La Ruota Della Fortuna), Germany (Glücksrad), Canada (La Roue Chanceuse in French, Wheel of Fortune in English), Israel (Galgal Hamazal), Turkey (Çarkıfelek), Poland (Koło Fortuny), Finland (Onnenpyörä), Denmark (Lykkehjulet), France (La Roue de la Fortune), and Argentina (La Rueda de la Fortuna, inside a show called Tiempo Límite XL). Besides the Australian version, France's La Roue de la Fortune is the most famous non-American version.


Gameplay
Three players take turns. When a normal round begins, the spaces in a puzzle are shown as blank white spaces on the board. Any punctuation (hyphens, commas, periods for abbreviations, apostrophes), and ampersand signs (&) are revealed. On a turn, a player can choose to spin the 24-sector wheel, buy a vowel, or attempt to solve the puzzle.


Spin
If the pointer lands on a cash value, the player names a consonant (Y counts as a consonant). If the letter is in the puzzle, the co-host reveals all instances of that letter in the puzzle, and the player receives the cash value multiplied by the number of instances of that letter. For example, if the puzzle was "TOO LITTLE TOO LATE", and the player spun $700 and guessed L, he or she would win $2,100 (on the Australian version, the spun value is not multiplied; in the previous example, despite the fact that the player has three L's on the board, he or she would only earn $700). If the letter is not in the puzzle, or the player guesses a letter that has already been guessed, the player's turn ends.

If the pointer lands on a prize, the player gives a consonant, and if it is in the puzzle, the player picks up the prize and sets it in front of them (previously, if a contestant had landed on a prize wedge, they could automatically pick it up, call a right consonant and spin again). They must then solve the puzzle in that round to win the prize. The prize is lost if he/she lands on "Bankrupt" later in the same puzzle.

If the pointer lands on the wheel's "Lose a Turn" space, the player's turn ends. If the pointer lands on "Bankrupt", not only does the player's turn end, the player loses all earned cash and prizes in that round.

If the pointer lands on a Free Spin space, the player can win the free spin in the same way as a prize. If he or she later lands on Bankrupt or Lose a Turn, or guesses a letter not in the puzzle, the Free Spin can be redeemed to continue playing. (Note: Through 1989, the wheel had a "Free Spin" space in the game's first round, which automatically gave that player a Free Spin token; this idea was scrapped as skillful contestants often racked up six or more tokens before actually attempting to play the game).

In many countries, the contestant gives a word beginning with the chosen letter along with it. Hence: "C for Charlie" and "I for indigo" and the famous (in Australia, anyway) "N for Nellie". This does not happen in the United States, although it was common early in the U.S. run, and sometimes still happens today if a contestant is asked to clarify his/her choice (for example, "S as in Sam," although this is quite rare).

Buying a Vowel
If a player has at least $250 in cash ($50 on the Australian version), the player can pay that amount to have all instances of a single vowel (A, E, I, O, or U) in the puzzle revealed. If the letter is not in the puzzle, the player's turn ends, but the $250 must still be paid. The contestant does not pay for every copy of the vowel revealed; in the above example, if the contestant guessed E, although 2 E's are in the puzzle, the contestant would not have to give up $500.

Very early in Wheel's U.S. network run, contestants had to land on a space marked "Buy a Vowel" in order to ask for a vowel. This proved to make the game ridiculously hard, and the space was scrapped in favor of a dollar amount before the show logged one month on the air. When the daytime show moved to CBS in 1989, vowels became $200, and then $100 by 1991.

Vowel buying is very common on the U.S. version, mainly since many puzzles have large numbers of vowels, particularly E's (it is not uncommon to see seven or occasionally even more of a vowel, especially E, in a larger puzzle—the record appears to be 11 E's). It is rarer in the UK and Australia.

Some argue that, because of the inflating dollar values, the amount spent for vowels should increase. Indeed, the lowest value on the wheel nowadays is $300; for many years it was $100, then $200. However, when you account for inflation, $250 in 1975 would be worth almost $1,000, meaning if you use this inflated price to buy a vowel with the current values on the wheel, most of the time you'd have to spin the wheel twice and/or get more than one instance of a letter to be able to buy a vowel — which, it should be pointed out, was exactly the situation in 1975. (For those who are interested, if they consistently kept rising the cost of the vowel to keep up with inflation, and $250 was the value now, vowels would've originally cost approximately $65 [$66.74 to be exact].)

In Australia, not only do you need the $50 (not a typo — see the beginning of the section), you also must not have spun the wheel for the turn. That is, if it gets to your turn and you spin the wheel, you lose the ability to buy vowels until it's your turn again. The host usually (if not always) asks if you want to buy a vowel before you spin the wheel, assuming you have the money.


Solve the Puzzle
Once enough letters have been revealed, a player can attempt to read the solution to the incomplete puzzle. If the solution is incorrect, the player's turn ends, although this seldom happens. Only the player who correctly solves the puzzle keeps the earnings from the round. If the player's total is less than $1,000, a house minimum of $1,000 is awarded.

During the show's early months, the house minimum was $100; this was quickly increased to $200. In the early 1990s, the minimum was boosted again to $500, where it remained until 2005. In the current season, the house minimum is $1,000 per player, meaning during special weeks where two players compete on each team, the minimum is $2,000.


Shopping
From 1975–1989 on the NBC daytime version, and from 1983–1987 on the nighttime syndicated version, after a contestant won a round, he/she had the option of shopping for prizes amidst the studio, like cars, furniture, trips, furs (until animal activists complained), and jewelry. When the player spent enough to not be able to buy the least expensive prize, or when they didn't feel like shopping anymore, they could choose to put their money on a gift certificate or "on account" (which meant they risked their money for the next round; they had to avoid Bankrupts and also had to win the succeeding round in order to keep the money and use it for shopping.) The "on account" option was rarely used. During a special "Retro Week" in 1999, shopping was re-instated except the "shopping" portion was treated as a special space, and the contestant "bought" a prize package from a turntable. When the show started, the emcee, either Woolery, Sajak or Benirschke would say, "Watch out for the black space, "Bankrupt", because you will lose your cash, but not your merchandise, because once you buy a prize it is yours to keep." That saying became one of the most famous lines in game show history.


Playing for Cash
In 1987, the syndicated version of Wheel switched to an all-cash format that, while originally planned to last only for the month of September of that year, became a permanent fixture as it sped up gameplay where it would be common to see 4, 5 or even 6 puzzles on a given night. Now, 6 maingame puzzles are rare with all the time taken up by toss-up puzzles, prize puzzles where a home viewer can win the same prize as the contestant via SPIN I.D., and advertisements for various rounds, most notably the Jackpot round. From 1987 to the turn of the previous decade, to generate building interest as the game continued, the maximum dollar amount for each round increased significantly. It began with the $1,000 space as top dollar value for round one, $2,500 for round two, $3,500 for round three, and $5,000 in round four until the maingame was over. Earlier this decade, to account for inflation, the top dollar value changed to $2,500 in round one, $3,500 in rounds two and three, while the $5,000 space remained in round four. In one episode, Wheel tried to incorporate the $10,000 wedge as a normal space not surrounded by two Bankrupts, but it was eventually scrapped. In any event, the person who solved the puzzle won whatever amount he/she had in cash, excluding prizes the contestant won earlier in the round.


Special Rounds
In recent years, various special rounds have been introduced.


Toss-up Round
This was made possible with the advent of an electronic board, compared to the mechanical board. A puzzle is revealed one letter at a time except for the last letter (similar to the Speedword on the Scrabble game show). A player may buzz in to solve the puzzle for a set amount of money ($1,000, $2,000, or $3,000 in the U.S. version).

In the present U.S. version, two toss-ups for $1,000 and $2,000 start the game, with the second one determining who starts round 1. (The first one determines who the host introduces first.) The $3,000 toss-up determines who starts the fourth round, which is usually the speed-up round.

An incorrect guess disqualifies that player for the rest of the puzzle. If all of the spaces are filled in or all of the players are incorrect, no cash is won, and play began with either the left-most contestant or (if it was Round 4) wherever it left off before.

If 2 or all 3 players are tied at the end of the game, then a toss up round is played for the right to go to the Bonus Round. No money is at stake in this round.

The Australian version added their version of a toss-up (called a Flip Up there) in 2004, when the puzzle board was switched from a mechanical one to an electronic board.

In 2002, Germany had its own version of a toss-up (called a Turborunde).


Bankrupt/$10,000/Bankrupt (Round 1)
In the first round, a wedge is placed on the wheel that reads $10,000 in the middle peg gap and Bankrupt in the other 2. Landing on Bankrupt results in a normal Bankrupt; landing on the $10,000 allows the player to guess a letter. If he/she is correct, the player picks up the wedge and it is treated as a prize. The $10,000 prize cannot be used to buy vowels; Pat will often say "You don't have any spendable cash" if the $10,000 is one of the first prizes claimed in the round.

When this space debuted in the 1994-1995 season, it was on the wheel starting in round three and remained on the wheel until a contestant landed on the $10,000 slot and claimed it. This space was originally on top of one of the two bankrupt spaces, but is now over the orange $800 space in round one.


Double Play
During the 1995-1996 seaon of the U.S. version, a special token called the "Double Play" was put on the wheel. A player won possession the token if s/he landed on the space with the token and called a consonant in the puzzle. The player in possession of the Double Play could use it before any spin. If the wheel landed on a dollar amount, that amount was doubled for that turn. If the wheel landed on a penalty space, the Double Play token was lost, but the penalty was only endured once. If the wheel landed on a prize after using the Double Play, the Double Play was returned. A contestant was not required to forfeit the Double Play if s/he landed on a Bankrupt while possessing the token. The Double Play was no longer offered after the 1995-1996 season.


Jackpot Round (Round 2)
After each spin, the value of the spin is added to the jackpot, regardless of whether or not the letter chosen is in the puzzle. The jackpot starts at $5,000 (when the Friday Finals existed, the Jackpot on that certain episode starts at $10,000 rather than the usual $5,000). If a player spins and lands on Jackpot, they must call a letter in the puzzle and solve the puzzle all in that turn. Pat usually asks the contestant if they'd like to solve for the Jackpot, so they know that if they can solve it, they'll win whatever is in the Jackpot.

Originally, the Jackpot Round was played in Round 3.


1987-1989 Jackpot
The current Jackpot Round debuted in 1996, and was quite different from a Jackpot Round that was part of the NBC daytime show from 1987-1989.

That version of the Jackpot Round worked just like the syndicated Prize Rounds. The Jackpot space went into the player's bank (for correctly guessing a letter), and won the value for solving the puzzle AND avoiding Bankrupt.

The Jackpot started at $1,000 and increased by $1,000 for each show it went unclaimed. The resulting Jackpot was not a cash prize; it became available for shopping.


Prize Round
The Prize Round was added in 1983, for the syndicated version only. It was played in Round 2, and the prize usually was worth anywhere from $1,000 to $10,000. The prize space originally concealed a $150 amount. When the "all cash" format was added in 1987, a second Prize Round was added, usually in Round 4; both prizes were specific to that round. The Prize Rounds were added to the daytime show in 1989.

The player had to avoid "Bankrupt" and solve the puzzle to win the prize.

The Prize Round has changed several times through the years, and currently is played in Round 1. The prize – which is almost always a trip – now carries over to later rounds. The prize value is usually worth between $4,000 and $10,000.

Originally, a contestant who landed on the prize simply picked it up and it went into his/her bank. By 1989, a contestant had to guess a letter to be able to pick up the prize.

For a time in the 1990s, there was also a Surprise on the wheel in Round 1. The Surprise worked just like a normal prize, except that its identity was kept a secret. Its identity was not revealed unless it was won.

As of 2003, along with the announced prize, there were two or three smaller "prize tokens" on the wheel – usually gift certificates, gift packages or items such as an XM Satellite Radio. A crafty spinner could pick up several of these prize cards in a single round.


Mystery Round (Round 3)
Two $1,000 spaces (originally $500 from the round's debut in 2002 up until Season 22) marked with a stylized question mark are placed on the wheel. If a player lands on one of these mystery wedges and guesses a letter in the puzzle, they may either take $1,000 per letter as normal, or turn over the mystery wedge. On the other side of the mystery wedge contains either a Bankrupt or a prize (usually $10,000–$13,000 cars or a $10,000 prize). If the player reveals the prize, as with any other wheel prize, they must solve the puzzle without hitting Bankrupt to win it. After one mystery wedge is revealed, that space becomes a normal cash wedge, and the other mystery wedge acts as a regular $1,000 space for the remainder of the round. Beginning in Season 23, Pat Sajak shows the home audience what's behind the mystery wedge before a decision is made by the contestant.


Speed-Up Round
When time is running short, four consecutive tugboat-like bells are heard. Then the host will spin the wheel, and give his spiel about what going to happen this round. Often the speed-up round occurs in the middle of a round (usually the fourth round) although some fast-paced games continue to a fifth and rarely even a sixth round. In slower games, the final spin will start the fourth round. The audience is told to keep silent so the answer cannot be revealed. This round had background music later on.

In recent U.S. seasons, $1,000 is added to the value of the final spin (for example, landing on $550 means consonants are worth $1,550). Previously, the speed-up round was often anticlimactic, especially when the leader had a huge lead over the second- and third-place contestants and Sajak landed on a small dollar amount.

On some versions, such as in the U.S., the host intentionally aims for the top dollar value with the final spin; the wheel is set to give the host a better chance of hitting it. In other versions, the host gives a random spin. If the host spins bankrupt or lose-a-turn, or a remaining prize (when they were on the board on the final round) in the final spin, he spins again. To save on TV air time, those spins are edited out for broadcast.

The record for the most money won in the speed-up round is $54,000, set during a February 2005 episode from Las Vegas and again in October 2005.


Puzzle Round
Some puzzles have a question that can be answered in order to win some extra money ($3,000 on the U.S. version). Categories for this puzzle include:

Clue: The puzzle describes a person, place, thing or event, and the contestant wins money for guessing that object. 
Fill In the Blank: Three question marks appear by themselves in the puzzle, representing a common word. After guessing the puzzle, the contestant can identify the word that goes in the blank. 
Example of Fill In The Blank
? And Sour
? Dreams
? Home Alabama
The answer to the blanks is Sweet, and correctly guessing that earns the player $3,000.

Next Line Please: The puzzle is a sentence of some sort; the contestant wins money for continuing the sentence. 
Slogan: The contestant must identify the brand or company that uses the slogan used in the puzzle. 
Who Is It/Are They?: The puzzle is a description of (a) person/people, dead or alive, real or fictional. The contestant must identify the person/people the puzzle is talking about. 
Where Are We?: Similar to to Who Is It? except that the puzzle gives landmarks, traditions, etc. about the location. The contestant has to guess where the puzzle "is." 
Who Said It?: Like the category quotation, except that the contestant must identify who said it. 
Fill In The Number/s: The puzzle contains numbers, except that the number/s is/are replaced with sharps (#). The person who solves the round has to fill in the number/s. For example, a Fill in the Number puzzle would look like this: 
TO BE ELATED IS TO BE ON CLOUD NUMBER #
The answer is 9, and guessing 9 earns $3,000.

Megaword: This puzzle is a word of at least nine letters. The person who solved the puzzle could win extra money by using the word in a sentence. Due to its extreme unpopularity with the show's fans, this category is no longer used. 
Red-Letter Puzzles: During the mid-1990s, a puzzle would occasionally have a few red letters that were scrambled on the board. If the person who solved the puzzle could unscramble the word, s/he won bonus money. 
In Australia, the rules for the red-letter round are different. Only one letter is made red, and guessing the red letter doubles the value of the spin (e.g. given Australia's other rules, if a person spins $300, picks a P, and one of the P's is red, the person gets $600). Because of this rule, the letter that is painted red is always a consonant.


Prize Puzzle
As indicated at the beginning of a puzzle, at seemingly random intervals there are Prize Puzzles that award the winner with a prize somehow relating to the puzzle. (Starting in the 2005-2006 season, there would be a prize puzzle every night, appearing in either round 1, 2, or 3.)

Example: If the solution was "FUN IN THE SUN", the player would win a trip to a tropical island.

Starting sometime near the end of 2004 (which was during the 21st season), home viewers (in the U.S. only) were given a chance to win the same prize as the contestants with a "Special Personal Identification Number" (S.P.I.N), consisting the first letter of their first and last name, and five numbers (example: AB12345) from the show's web site, and having 24 hours to log on and claim their prize. (Also, starting in the 2005-2006 season, if a contestant won a car in the Bonus Round, a home viewer with the matching SPIN ID would also won the same car as the on-air contestant. The rules for claiming the car are the same as the Prize Puzzle rules.)

Apparently somewhere around this time, the prizes given away became exclusively trips.

The 2 letters are the winning home viewer's first and last initials. It is not known how the five digits are computed, and it is possible that either the numbers are randomly generated or how they come up with the digits is kept a secret.


Bonus Round
A final puzzle is put up and the contestant chooses several consonants and a vowel. Occurrences of these letters are revealed and the contestant has a small amount of time, but as many guesses as necessary, to solve the puzzle.

Several versions of the Bonus Round – including the long-familiar format introduced in 1981 – have been used, and are detailed below.


1975 "hour long WOF" version
The U.S. version tinkered with a bonus round format for 6 weeks in 1975, when the show was 1 hour long. The winner of the show would play a sort of bonus round, and have the choice of 4 different puzzles—easy, medium, hard, and difficult. When they chose the puzzle, they were asked to give 4 consonants and a vowel. Then they were given 15 seconds to guess the puzzle.

If the puzzle was solved, they won a prize based on the puzzle's difficulty. For example, if the contestant chose an easy puzzle, he/she might win a $1,000 television-stereo console, while solving a difficult puzzle would win them a $13,000 Cadillac Eldorado. The prizes varied widely.


1978 "Star Bonus" version
The "Star Bonus" round was played for a time in 1978, which would enable a second- or third-place contestant to possibly become champion by solving a Bonus Round-type puzzle.

A special "Star Bonus" disc was placed on the wheel. If the contestant landed on the wedge, he/she was provisionally entitled to play the Bonus Round if he/she was the second- or third-place contestant that day. The contestant had to play for a prize that was more than the difference between him/her and the first-place contestant; just like the hour-long Bonus Round, the prize's value corresponded with the puzzle's difficulty.

As before, the contestant was asked to pick 4 consonants and a vowel, then given 15 seconds to attempt to solve the puzzle.

Critics of this format point to several flaws, most notably that merely landing on the space did not guarantee the Star Bonus would be played. It was possible for the day's eventual first-place contestant to land on the Star Bonus. Also, the Star Bonus prizes were available during shopping rounds, meaning a dominant player could buy that $13,000 Chevrolet Corvette and thus render an opponent's Star Bonus token useless (since no available prize would allow him/her to overtake the first-place player). Then, there was the possibility that the Star Bonus token would not be landed on at all; plus, some haphazard editing also irked viewers.


1981-current "Bonus Round"
Pat Sajak's first show in 1981 was also when the current bonus round became permanent.

When it debuted in 1981, the contestant chose a prize (tagged with a special gold star, usually worth $1,500 or more). He/she then was presented a puzzle and told its category. He/she then was asked to choose 5 consonants and a vowel. The contestant was given 15 seconds to solve the puzzle. If correct, he/she won the prize. Contestants stood behind the wheel during the bonus round during the first week; after that, they would be standing on the other side of the wheel, with the chosen prize just upstage, and the "Wheel of Fortune" logo on the floor.

A statistical analysis shows that R, S, T, L, N, and E are the best choices, and these were almost always selected by contestants. Starting in 1988, the contestant was automatically given the R, S, T, L, N and E, and then asked to pick 3 more consonants and one additional vowel. The contestant is then given 10 seconds to solve the puzzle.

Since then, the difficulty of the bonus puzzles has gone up, sometimes with only 1 or 2 instances of the automatic letters appearing in the puzzle.


Changes to the 1981 bonus round
1987 syndication – When the syndicated "Wheel" began its all-cash format, much larger bonus prizes were offered. Examples: a Ferrari, a vacation for six on a private island in Jamaica, a 5-acre plot in Maine, a motor home plus an invitation to tour Alaska with an RV club, a cabin cruiser, tickets to every major sporting event for the next year, a time-share vacation home at Lake Tahoe, and valuable annuities. One of the prizes was always $25,000 in cash. The cash quickly became far and away the most popular bonus prize, while cars were second. The NBC daytime show, meanwhile, used the 1981 Bonus Round format until the blind-draw method was introduced in 1989, no cash was offered and contestants just chose what prize to play for. On the CBS run, one bonus prize was always $5,000 in cash. 
1989 – Each of the week's prizes went into a blind draw, each hidden in an envelope and placed behind a letter in the word "WHEEL." Each prize could be won just once in a week. The extravagant prizes continued on the syndicated version, meaning someone could win such items as a Hummer, a speedboat or a log cabin as their bonus prize. This was not done on the CBS daytime version (and later on when it moved back to NBC for the final few months); contestants picked one of five prizes on offer, one of which was always $5,000 cash. In keeping with the lower stakes of the CBS show, the other bonus prizes typically included trips and sub-compact cars. 
By the mid-1990s, with contestants still preferring $25,000 (or at least one of the available cars), the cash was eventually made available every day, the other prizes, like the cars, could only be won once per week. The other prizes, such as the "Precious Gems Package" were eventually scrapped. For the last two months of this format during the 19th season, 3 contained cars, and the other two had the cash. 
2001 – The Bonus Round was revamped and allowed the contestant a chance to play for $100,000. The contestant first spun a small 24-section wheel to determine which prize he or she would be playing for. 11 of the wedges held $25,000. There were 4 wedges for each of the 3 cars available that week. The remaining envelope concealed the grand prize of $100,000. 
In 2002, the Bonus Wheel prizes were revised, with cash amounts of between $30,000 and $50,000 hidden in the mix (each in increments of $5,000). The prize distribution was thus: 
* Six (6) envelopes containing 2 car. 
* Six (6) envelopes containing the other car. 
* Six (6) envelopes containing $25,000 
* One (1) envelope each containing $30K, $35K, $40K, $45K, $50K, and $100,000. 
Four solo contestants and three teams have won the $100,000 prize. Douglass Ross was the first to do so in December 2001, and was the only one to win it during the 2001-2002 season. It was won three times during the 2002-03 season, with 2 solo contestants and one team winning it. It wasn't won at all during the 2003-04 season. It was won once in 2004-2005, and twice (so far) in 2005-2006. 

Biggest Winners (and Losers)
The record for $25,000, and a trip, and $25,000 show is $119,826 from Shane O'Donnell in "Wheel of Fortune from Disney World" 1992. 
The all-time winnings record on the show is $146,529, set by Peter Argyropolous and Deborah Cohen during "Sweethearts Week" in 1996. 
The one-day team record is $121,831, set by Bonnie Malone and Karen Davy during "Family Vacations Week" in December 2002. They solved all the puzzles on the show, including the bonus round puzzle, for a total of 9, which is currently an all-time record. The one-day record for a solo contestant is $119,100, by Byron Pope in April 2003. 
The all-time maingame winnings record is $65,250, set during a 2001 College Week episode from Washington D.C. 
The most amount lost in one single round was $62,400 set in 1985. A contestant named Terry lost her turn, and eventually the round, by calling an "S" in the puzzle "THE THRILL OF VICTORY AND THE AGONY OF DEFEAT". 

List Of $100,000.00 Winners
Douglass Ross (first winner)

Bonnie Malone and Karen Davy

Byron Pope

Nancy

Taylor and Vlada

Jessica Derenbecker

Denise and Ariel


The Bonus Round in foreign countries
In other foreign countries, the "R, S, T, L, N, E" is never given to the contestant, although Germany used this sort of format around the late 90s to the early 2000s. 
In Australia, the contestant earns two consonants and a vowel, but can earn an extra consononant for every $2,000 scored in the main game. Theoretically, enough money ($38,000) can be earned so as to call every consonant. 
Some other versions, like Glücksrad in Germany, still use the 15-second time limit for their bonus rounds. 

"Wheel" in popular culture
On Dead Like Me, the moment George realises she has just died is represented by a fantasy Wheel of Fortune scene: staring at the letterboard which is displaying YOU'RE D_AD, she proclaims: "I'd like to solve the puzzle." 
Sajak and White appeared as themselves on an episode of The King of Queens. The show figures into a series of dreams that Doug Heffernan (Kevin James) has while he is sick. Doug, his wife Carrie (Leah Remini) and father-in-law Arthur Spooner (Jerry Stiller) are contestants on Wheel. At the beginning of the Wheel sequence, Arthur tries to guess a number (which is never allowed on Wheel, except for a Fill in the Number puzzle), then gets buzzed out while he tries to figure out what letter he wants to guess. Then it is Carrie's turn to spin the wheel. After the wheel has stopped, Carrie suddenly decides to solve the puzzle. Almost immediately, Doug freaks out and rushes to the letterboard, apparently trying to prevent Carrie from guessing the intended solution to the puzzle: "Doug Heffernan is a Big Fat Liar." 
On Full House, D. J. Tanner (played by Candace Cameron) has a nightmare about taking the SAT. In her dream, Vanna White pays a visit to the test room. On the puzzleboard, it was revealed that Kimmy Gibbler (Andrea Barber) was going to Stanford while D. J. was going to "CLOWN U". 
Other TV shows that have featured WoF as part of the plot included The A-Team, Gimme a Break, 227, Friends, L.A. Law, and Santa Barbara. 
There is a point in Rain Man where a Wheel of Fortune episode can be heard on Raymond's TV, but the show has little to do with the plot; in fact, the episode in question could have been a regularly scheduled episode. (Raymond does say the "Look at this studio…" line, but the line was regularly done on the show at the time.) 
Chuck Woolery and Pat Sajak have appeared as guests on each of their respective talk shows over the years. 
During a celebrity WoF show in New Zealand, boxer David Tua became a local legend while requesting a vowel by asking for "O for Awesome". 
There is a drinking game, popular in Australia, known as Goon of Fortune, in which players stand in a circle around a Hills Hoist, to which multiple bags of wine (Goon) are attached. The "wheel" is spun, and the players nearest to the stopping position of the bags drink from them. 

Slot machines
Given creator Merv Griffin's fondness for gambling (including being a successful casino owner), it would seem natural that Wheel would be featured as the basis for a slot machine. International Gaming Technology licensed the rights to make Wheel-based games in the 1980s. The first machines (and still the most popular) featured standard IGT traditional three-reel slot machines, each with a reporoduction of the show's famous wheel above the reels. When a "SPIN" symbol lines up on any reel, the player presses a button to start the wheel spinning, and a player could win as many as 1,000 credits (with no "Bankrupt" wedges). Lining up three "Wheel of Fortune" symbols wins the progressive jackpot, which is usually linked with other Wheel machines throughout a given state and reaches into the millions of dollars.

In more recent years, as video-based slot machines with many paylines have become popular, video versions of Wheel machines have appeared, all with the familiar wheel above the screen. These also feature wide-area progressive jackpots. In 2004, a version featuring Sajak and White was produced as a "Special Ediiton," the only machines in the series to feature human voices, aside from the familiar show-opening audience chant.

The Wheel slot machines are widely believed to be the most popular slot machines ever distributed in North America. Indeed, one can hardly walk through a casino anywhere on the continent without repeatedly hearing the "WHEEL ... OF ... FORTUNE!" audience chant that comes from a machine when a player gets to spin the wheel.





Wheel 2000
In September of 1997, a children's version of the American version was created and aired on CBS every Saturday. Former Roundhouse star David Sidoni was the host, and instead of a real-life hostess, a virtual one took over. The on-screen fictional character was named Cyber Lucy, and the moves and voice were those of Tanika Ray. Game play was very similar to the nighttime version, only that contestants got to choose the puzzles for each round among three categories, like "Globetrotter" (which is Place/On The Map on the regular show), "Just Stuff" (Thing on the regular show) and "VIPs" (Proper Name on the regular show).

Contestants played for points rather than money, so if they solved the puzzle, instead of having their points turned into money, they got a prize such as a Game.com. The top point value in each round increased 1,000-2,000-5,000; the remaining wedges did not change. The speed-up round was played as normal (one episode had the speed up round played at the end of the second puzzle.) After each solved puzzle, a short video clip presented by Cyber Lucy or a CBS television star would be shown that related to the solved puzzle.

The Wheel was redesigned with brighter colors and different names for various spaces:

Bankrupt became "The Creature". It would come up from under the wheel and eat all of the player's points for that round. 
Lose a Turn space was renamed "Loser." 
The 750 point wedge allowed a home viewer to win a Wheel 2000 t-shirt and cap if the in-studio contestant managed to choose a correct letter in the puzzle. 
A 500 point space could become 1,000 points if a puzzle-related question was answered correctly; if not it was still 500 points. 
Three 250 point spaces became six-peg wedges, and the first person to hit it was to play a stunt to receive three random letters at the same time. They had to do some sort of simple stunt, like feeding a mechanical dinosaur, matching shapes on cubes or picking up phones and guessing what famous person was on the other line. Every time they completed a part of the stunt, they got a letter chosen randomly. When they got three letters, or when time was up (they had 60 seconds) the stunt was complete. They went back to the wheel and had the option of seeing if the letters that they earned are in puzzle or choosing to spin the wheel and choose a letter of their own, meaning that the stunt only took up gameplay time. The 'stunt' wedges then became regular double-wide 250 point spaces. 
There was one space on the Wheel with a small prize, which the player could win if a correct letter was given. Each correct letter was also worth 100 points. 
The bonus round was like the adult version, except that the contestant had only a choice of two secret prizes to choose from, rather than the regular five. Also, as opposed to the names in the main game, bonus round puzzles had the same category names as the adult version. One of the prizes would be a computer and the other is where the kid contestant would be going to school in a limo for a week.

The show did not catch on with viewers, and was cancelled after one year on CBS's Saturday morning lineup. Reruns continued to air on Game Show Network (now GSN), which had been rerunning the show concurrently with CBS, for several years.