John Carpenter became the first millionaire on the United States version of the game show Who Wants to Be a Millionaire on November 19, 1999. He held the record for the largest single win in United States game show history until it was broken by Rahim Oberholtzer who won $1.12 million on another U.S. quiz show, Twenty One.
http://v.youku.com/v_show/id_XNjAzMTg5MzI4.html
http://www.youtube.com/watch?v=fDvNoLboqQM