What's My Line?

Four panelists must determine guests' occupations - and, in the case of famous guests, while blindfolded, their identity - by asking only "yes" or "no" questions.

TitleWhat's My Line?
First Air DateFebruary 2nd, 1950
Last Air DateSeptember 3rd, 1967
Production CompanyMark Goodson-Bill Todman Productions
ProducersMark Goodson, Bill Todman
Number of Seasons1 Seasons
Number of Episodes876 Episodes
Plot Keywordsgame show, mystery guest, celebrity panel
John Charles Daly
John Charles Daly
Self - Moderator
What's My Line