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Though far from being as listed "Buster Keaton's Second Television Appearance" this is indeed a rare early Buster appearance on ABC's SHOWTIME USA broadcast from New York March 11, 1951 hosted by Eva Gabor and also featuring Beatrice Kay and we get to see Buster and Eleanor do the park sketch again, probably on their way to England to do music hall appearances:

https://www.youtube.com/watch?v=_f2IMp4epds


RICHARD M ROBERTS