You yunguns may not know the show What's My Line? (heck, even an old coot like me is too young to have seen this show during its run), but it was a '50s–'60s game show in which a celebrity panel tried to guess the occupation (the line of work) of a series of guests.

In the clip above, which aired on November 23, 1958, Barbara Harding is a "pizza pie maker."