I've Got a Secret
In addition to being used as a tag for his entrance on CBS episodes he hosted, Steve Allen's composition "This Could Be the Start of Something" was used as the opening theme in 1972. The closing theme to the 1972 version was written by Edd Kalehoff. The theme from the 1976 version with Bill Cullen was used one year later on the ABC game show Second Chance. A remix of that theme was also used in the Australian version of Family Feud''.