I listened to the OMNIVORE CD reissue of THE ERNIE KOVACS RECORD (from
Columbia Lp plus extra tracks).  Perhaps another senior moment, but I do not
hear a routine I thought was on that Lp.

IIRC it was part of the "answer man" routine, questioned about people
falling off the edge of the (flat) earth.  Perhaps I am conflating

It with a radio or TV episode.

If you have the LP, wonder if you would listen and see if it is on the Lp