Twenty One(1956)

Twenty One is an American game show which aired in the late 1950s. While it included the most popular contestant of the quiz show era, it became notorious for being a rigged quiz show which nearly caused the demise of the entire genre in the wake of United States Senate investigations. The 1994 movie Quiz Show is based on these events. A new version aired in 2000 with Maury Povich hosting, lasting about five months on NBC.