John Charles Daly
Daly's first foray into television was as a panelist on the game show "Celebrity Time". This led to a job in 1950 as the host and moderator on a new panel show produced by Goodson–Todman, "What's My Line?" The show lasted 17 years with Daly hosting all but four episodes of the weekly series.
What's My Line?
The 876th and final CBS telecast of "What's My Line?" aired on September 3, 1967; it was highlighted by clips from past telecasts, a visit by the show's first contestants, a challenger from the New York unemployment office, and the final mystery guest, who was John Daly himself. Daly had always been the emergency mystery guest in case the scheduled guest was unable to appear on the live broadcast, but this had never occurred. Mark Goodson, Bill Todman and Johnny Olson appeared on-camera as well.