Jeopardy! is a popular American television game show that has since been adopted for international markets. Created by Merv Griffin, it debuted on NBC on March 30, 1964 and was originally hosted by Art Fleming until its cancellation on January 3, 1975, but was revived in first-run syndication in the U.S. with host Alex Trebek on September 10, 1984. It is played with three contestants. It has also been adapted to video games and a classroom activity.
The show uses a unique answer and question format. That is, the host will give a contestant an answer in which they must respond with a question. For example, if the host gives the clue This person was the first President of the United States, the correct response the contestant must give is Who was George Washington?. The show originally required the responses to be grammatically correct (for example, Who is is the only acceptable beginning for a response dealing with a live person) but this was seen as a time waster so any correct response in the form of a question could be accepted.
The show features a board with several categories with clues ranging from $200-$1,000 (in the U.S. version), questions increasing $200 in value further down the category. Clues range from pop culture and sports to history, geography, word play, science and other subjects. The contestant who was the champion from the previous show starts in the first Jeopardy! round and picks a clue. They pick the clue and category, and the host reads the clue which a certain time is given to buzz in. If a contestant buzzes in with a correct response, they earn the amount of money for that clue. If a contestant gives an incorrect response, that amount is deducted from their score, and in the case they do not have enough money to deduct, they have a negative score and must give correct responses to get back on the positive side. There is one Daily Double in the round where the contestant who picks it is the only one allowed to respond to that clue, and must wager at least five dollars, and can wager up to their full winnings (making a True Daily Double). Double Jeopardy! is played the same way, but the values are doubled to $400-$2,000 and there are two Daily Doubles. Final Jeopardy! is the last round of the game. If a contestant has a zero or negative score, they cannot participate. The host gives the contestants the category to the clue and they must write down a wager. They are then given the clue and must write down a response. If it is correct, they are given the amount they wagered added on to their score to make their final score. If it is incorrect, the amount is deducted. The contestant who has the largest earnings at the end of the game win these earnings and are a Champion. They go on to the next game. The other two contestants are given consolation prizes.