Truth or Consequences
This show originally aired as a radio quiz show starting in 1940, then crossed over to television in 1950. The show asked contestants to answer obscure, often trick, questions, then, if they couldn't answer, made them suffer the "consequences" -- often embarrassing or silly stunts. Bob Barker hosted the show from 1956 to 1975, but the show never quite recovered after his departure. The show ran off and on for about 20 seasons from 1950 to 1978 and had a short-lived revival in the late '80s.