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.
Bennett Cerf
Prior to 1951, Cerf was an occasional panelist on the NBC game show "Who Said That?", in which celebrities try to determine the speaker of quotations taken from recent news reports. In 1951, he began appearing weekly on "What's My Line?" and continued for 16 years until the show ended its run on CBS in 1967. Until his death, Cerf continued to appear regularly on the CBS Films, Inc. (now Viacom) syndicated version of "What's My Line?", along with Arlene Francis. Cerf was known as "Bennett Snerf" in a "Sesame Street" puppet parody of "What's My Line?". During his time on "What's My Line?", Cerf received an honorary degree from the University of Puget Sound.