Roger Craig on 'Jeopardy!'A University of Delaware graduate student who made a bold bet has become the biggest one-day winner in the history of the game show 'Jeopardy!' Roger Craig earned $77,000 on Tuesday's telecast. He beat the $75,000 standard set more than six years ago by legendary 'Jeopardy!' champ Ken Jennings.

Craig finished the first two rounds of the game with $47,000 and bet $30,000 on the Final Jeopardy category "Literary and Movie Title Objects." The clue: "The inspiration for this title object in a novel and a 1957 movie actually spanned the Mae Khlung River."