According to Wikipedia, Rocky and Bullwinkle moved to NBC in 1961 after a two-year, twice-weekly run on ABC's afternoon schedule.)
Never a solid 'hit' in the ratings, Rocky and Bullwinkle have never disappeared from the airwaves either.
Today is also the anniversary of the birth of the late, great Jim Henson, the creator of the Muppets. He left us far too soon.
Everybody remembers Kermit T. Frog. Everybody remembers Frank Sinatra. But how many people remember Frank Sinatra singing Kermit's signature song, "Bein' Green?" National Cherries Jubilee Day? Fooey!