Game shows are a television productions lasting for either 30 minutes or an hour. They are usually filmed before a live studio audience. Multiple contestants compete for prizes in some form of game, usually not physical (like football), requiring instead a mixture of wit, knowledge, guesswork, and an occasional keen flip of the wrist. There is usually one big prizewinner at the end of the show. (See Win Ben Stein's Money, Jeopardy, Wheel of Fortune, Hollywood Squares, The Price is Right, Family Feud, Who Wants to be a Millionaire, Greed, Let's Make a Deal, Twenty One, The Gong Show, and American Gladiators).