I believe I saw this famous duet when it first aired, too. Although I like this version, in the spirit of full disclosure I have to admit that I'm not that fond of "The Little Drummer Boy". In 1961 or '62, I don't remember which it was, my family and I went to visit relatives in West Texas for Christmas, and the 1958 version of this song by the Harry Simeone Chorale was still popular enough that it played on the radio ALL.THE.TIME. Seemed like I heard it a thousand times during those four or five days. Ever since I can't hear the song without thinking of that trip. But you can't really dislike it. It's "The Little Drummer Boy".
With love from Ukraine
26 minutes ago