Celebrity Jeopardy! aired on October 26, 1992. It features notable individuals as contestants competing for charitable organizations of their choice (or, in the cases of public officials, relevant charities chosen by the Jeopardy! production staff). The tradition of special Jeopardy! matches featuring celebrity contestants goes back to the original NBC series, which featured appearances by such notables as Rod Serling, Bill Cullen, Art James, and Peter Marshall. On the Trebek version, Celebrity Jeopardy! has traditionally been broadcast annually as a weeklong event, and on occasion there has been a special version of this event, called "Power Players Week", featuring personalities in politics and journalism. Unlike the regular games, in which a player finishing the Double Jeopardy! round with a zero or negative score is disqualified from playing the Final Jeopardy! round, Celebrity Jeopardy! instead grants players a nominal score of $1,000 with which to wager for the final round. Since its debut, Celebrity Jeopardy! has featured over 200 celebrity contestants, including Anderson Cooper, Lauren Graham, Jodie Foster, Ashton Kutcher, Nathan Lane, Chris Matthews, Harry Connick, Jr., Neil Patrick Harris, Lynn Redgrave, LeVar Burton, Andy Richter, David Duchovny, Wayne Brady, Star Jones, Jane Seymour, Jason Alexander, Regis Philbin, Sam Waterston, Mike Piazza, Larry King, Buzz Aldrin, Kareem Abdul-Jabbar, Tom Clancy, Kirsten Dunst, Naomi Judd, Kelsey Grammer, Charles Shaughnessy, Norman Schwarzkopf, Jr., Stephen King, and Carol Burnett. The last celebrity tournament was held in 2010. The previous "Power Players Week" was held in DAR Constitution Hall in Washington, D.C. in May 2012.