Underdog is an American Saturday morning animated television series that ran from October 3, 1964, to March 4, 1967 starting on the NBC network until 1966, with the rest of the run on CBS, under the primary sponsorship of General Mills, for a run of 62 episodes. It is one of the early Saturday morning cartoons. The show continued in syndication until 1973. Underdog, Shoeshine Boy's heroic alter ego, appears whenever love interest Sweet Polly Purebred is being victimized by such villains as Simon Bar Sinister or Riff Raff. Underdog nearly always speaks in rhyming couplets, as in "There's no need to fear, Underdog is here!" His voice was supplied by Wally Cox. History In 1959, handling the General Mills account as an account executive with the Dancer Fitzgerald Sample advertising agency in New York, W. Watts Biggers teamed with Chet Stover, Treadwell D. Covington, and artist Joe Harris in the creation of television cartoon shows to sell breakfast cereals for General Mills. The shows introduced such characters as King Leonardo, Tennessee Tuxedo, and Underdog. Biggers and Stover contributed both scripts and songs to the series. When Underdog became a success, Biggers and his partners left Dancer Fitzgerald Sample to form their own company, Total Television, with animation produced at Gamma Studios in Mexico. In 1969, Total Television folded when General Mills dropped out as the primary sponsor, but continued to retain the rights to the series until 1995 and TV distribution rights, through NBCUniversal Television Distribution, to the present day. Abroad and in syndication The syndicated version of The Underdog Show consists of 62 half-hour episodes. The supporting segments differ from the show's original network run. The first 26 syndicated episodes feature Tennessee Tuxedo as a supporting segment. (Tennessee Tuxedo originally aired as a separate show and also has its own syndicated adaptation.) Thereafter, for most of the balance of the package, the middle segments include Go Go Gophers and Klondike Kat for three consecutive half-hours and Tennessee Tuxedo in the fourth. Commander McBragg is featured in the majority of episodes, replaced by three segments of The Sing-A-Long Family (in shows one-three, 28–30, and 55–57). The final two syndicated Underdog half-hours feature two one-shot cartoons that were originally part of an unsold pilot for a projected 1966 series, The Champion (Cauliflower Cabbie and Gene Hattree), with Commander McBragg appearing in show 61 and Go Go Gophers in show 62.