Much More What's My Line?

Over the several years, I've posted a lot of 'Mystery Guest' segments from the game show What's My Line?  I've had this particular video for a while but wasn't quite sure of the best time to post it because it's a great deal longer than the usual clips.  This one last 90 minutes.  (Though that's with commercials, so it's quite a bit shorter.)  But I figured that with people now actually looking for things to watch, this might be the ideal time.

This is a 25th anniversary special of What’s My Line? 

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