Gameshow Marathon features six celebrity contestants competing in a weekly elimination-style tournament in which they play different classic game shows during each episode. Future episodes include, "Beat the Clock", "Press Your Luck", "Card Sharks", "Match Game" and "Family Feud". A champion will be crowned at the end of the series. In addition, the program will include a viewer participation element whereby they will have a chance to win the celebrity's grand prize each episode through a wireless (text message) trivia game that enters viewers into a sweepstakes.