What's My Line? Season 1 Episode 520 Episode 520 ( Air Date 1960-07-03 ) 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 520 Episode 520
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- Watch: What's My Line? Season 1 Episode 520 Episode 520 on CWR-CRB
- Stars: John Charles Daly
- Director: Bill Todman, Mark Goodson
