Rudolph started out on NBC. I seem to recall 1971 as either the last NBC year or the switch to CBS year. Trivia: in 1964, viewer feedback of disappointment that Rudolph
did not tell Santa about the Island Of Misfit Toys was such that new footage was shot for the second telecast's ending which remains to this day. Unfortunately, as a result it is now virtually forgotten that Ukon Cornelius threw his pick into the air one last time just as the sleigh was taking off...sniff, taste...and struck
peppermint!