I forget what it was called, in which I recall they had him pre-recorded at his introduction singing, ending with a rather badly placed high note; they should have used a different take.
Larry Blyden hosted the new edition of "What's My Line?" Here's Patty Duke as mystery guest, one of the funniest on the newer version. For the older one, I highly recommend among the funniest mystery guest Rosalind Russell and, you wouldn't quite think it, but, Fredric March. Such a good actor, he kept switching personalities that the panelists hadn't a clue.
Back to Patty Duke, who starts to get annoyed, at least in character, especially at critic Gene Shalit's attempts to guess who the heck she is.