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.
Tag the Gag
Tag the Gag is a very short-lived television series which aired in 1951 on NBC. According to IMDb, it lasted two episodes. It was a panel game show, a popular genre at the time. However, "Tag the Gag" proved unsuccessful with viewers and critics. It was hosted by Hal Block, best known as a regular panelist on the popular and well-received series "What's My Line?". Also featured were Morey Amsterdam, Harvey Stone, Herkle Stiles, and Jean Carroll. The archival status of the series is not known, and it is possible (though not confirmed) that it was wiped.