What's My Line?
In 1980, Mark Goodson-Bill Todman Productions, creators of "What's My Line?", produced "That's My Line" which also highlighted the unusual occupations of ordinary people. However, the show was developed as a reality show and had no panel or game elements. "What's My Line?" announcer Johnny Olson was the announcer, and Bob Barker was the host for the show which ran for two seasons on CBS.
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).