I've Got a Secret was a weekly game show produced by Mark Goodson and Bill Todman for CBS television. It was a panel game show, which means that it had, in addition to a host and guests, a group of people who together acted as judges. The show was created by comedy writers Allan Sherman and Howard Merrill. It was related to Goodson-Todman's other panel show, What's My Line?. The first episode of the show aired on June 19, 1952 and ran until April 3, 1967. The first version of the show was in black and white. It switched to color in 1966.
The show was canceled in 1967 and then brought back for the 1972-1973 season and again from June 15 to July 6, 1976, for a summer run. Another production ran on the Oxygen cable channel in a daily version, airing from 2000 through 2003. GSN ran a revival from April 17 to June 9, 2006 with an all-gay panel. In October 2006, GSN decided not to renew the show for a second season, although reruns remained on its schedule for some time afterward.