A returning champion and two challengers test their buzzer skills and their knowledge in a wide range of academic and popular categories.
|亚历克斯·崔贝克 (Alex Trebek)||饰||主持人|
|Johnny Gilbert||饰||Himself - Announcer|
|Lois Feinstein||饰||Herself - Contestant|
|Greg Hopkins||饰||Himself - Contestant|
|Frank Selevan||饰||Himself - Contestant|
|Merv Griffin Entertainment (2 episodes,1984)|
|Columbia TriStar Television|
|Sony Pictures Television (1 episode,2015)|
- In the first season, contestants could buzz in as soon as the question was revealed. Starting in the second season, the contestants had to wait until host Trebek finished reading the question before they could buzz in. If they buzzed before this, they were "locked out".
- On March 16, 2007, for the first time ever, the final question resulted in a three-way tie among the contestants (Jamey Kirby, Anders Martinson and Scott Weiss). They each won $16,000 after correctly identifying Bonnie Parker, of the infamous Bonnie and Clyde, to a question regarding women of the '30s. The odds of a three-way tie were calculated as being 1 in 25 million. Despite the odds, the current champion admitted that he bet so that a tie could occur, drastically diminishing the odds. Sadly, in 2014, ties were officially cancelled and, as of 2018, result in a tiebreaker clue to determine the winner of the game played that day.
- Five shows are taped on Monday, and five shows are taped on Tuesday. Therefore two weeks worth of shows are taped each week.