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.
Victor Borge
Borge made several appearances on the long-running TV show "What's My Line?", both as a celebrity panelist, and as a contestant with the occupation "poultry farmer" (the latter was not a comedy routine; as a business venture, Borge raised and popularized Rock Cornish game hens starting in the 1950s).