What's My Line? Season 1 Episode 400 Episode 400 ( Air Date 1958-02-02 ) Genre Family, Comedy category. Overview "Four panelists must determine guests' occupations - and, in the case of famous guests, while blindfolded, their identity - by asking only "yes" or "no" questions.".
What's My Line? Season 1 Episode 400 Episode 400
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- Stars: John Charles Daly
- Director: Mark Goodson, Bill Todman
