Underdog is an American animated television series that debuted October 3, 1964, on the NBC network under the primary sponsorship of General Mills, and continued in syndication until 1973, for a run of 124 episodes. Underdog, Shoeshine Boy's heroic alter-ego, appeared whenever love interest Sweet Polly Purebred was being victimized by such villains as Simon Bar Sinister or Riff Raff. Underdog nearly always speaks in rhyme, as in, "There's no need to fear, Underdog is here!" His voice was supplied by Wally Cox.

Tennessee Tuxedo and His Tales is a semi-educational animated cartoon TV series that originally aired on CBS from 1963 to 1966. It was produced by Total Television, the same company that produced the earlier King Leonardo and the later Underdog, and primarily sponsored by General Mills. The title is a play on “tuxedo and tails” formal wear.