Grand Slam is a television quiz show first created for Britain's Channel 4 in 2003.
The contestants taking part, all of them previous quiz show winners, were: Dee Voce, Geoff Owen, Olav Bjortomt, David Edwards, Mark Labbett, Clive Spate, Melanie Beaumont, Peter Lee, Gavin Fuller, David Stainer, Graham Nash, Michael Penrice, Michelle Hogan, Laura Richardson, Said Khan, and Duncan Bickley (who lost £218,000 on an episode of Who Wants to Be a Millionaire?
Each contestant paid £1000 to enter, which made up part of the prize fund (hence the title, which has a double meaning referring both to the sporting concept of a "grand slam" and to the entrance fee).
Each contestant also has three switches to use over the course of the programme, i.e. opportunities to pass the turn (and the current question) to his/her opponent.
The listed score is the number of seconds the winner had remaining at the end of the match.
The initial series, premiering August 4, 2007 on GSN consists of a 16 player elimination tournament.
As with the British series, the US program is presented as a grand championship of game shows.
Unlike the British series, however, the contestants did not pay an entry fee; they were instead invited for a $100,000 (US) winner-take-all tournament sponsored by Sony, which produced the show.