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.
Hal Block
In March 1950, producers of the new game show "What's My Line?" hired Block for its fourth episode to add humor to the show's format. With a panel previously consisting of journalists, a politician and a poet, reviewers had criticized the show as bland. After a rocky start, "What's My Line?" became one of the top-rated shows on television. Critics praised his work; the "Chicago Sun-Times" called Block the "freshest new personality in TV."