When did episode 420 from season 1 premiere?
Episodio 420 from What's My Line? aired on June 22, 1958. It belongs to season 1, episode 420.
Data refreshed on Mar 26, 2026.
T1 · E420
Episodio 420 from What's My Line? aired on June 22, 1958. It belongs to season 1, episode 420.
Data refreshed on Mar 26, 2026.
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