What’s My Line? a panel game show which originally ran on the CBS Television
Network from 1950 until it’s cancellation in 1967. It is the longest-running game
show in the history of U.S. prime time television. It was hosted by John Charles
Daly with panelists Dorothy Kilgallen. Arlene Francis, and Bennett Cerf. 

The show won three Emmy Awards for “Best Quiz or Audience Participation Show”
in 1952, 1953 and a Golden Globe for Best TV show in 1962. After it was 
cancelled by CBS in 1967, it returned in syndication as a daily production
returned in syndication as a daily production which ran from 1968 until 1975.