In what year did this pilot episode air of this American animated television series, whose title character held the same name as the show and also included the character Mrs. Puff?
SpongeBob SquarePants (character) SpongeBob SquarePants is the titular character and protagonist of the American animated television series of the same name. He is voiced by actor and comedian Tom Kenny and first appeared on television in the series' pilot episode on May 1, 1999.
Underdog (TV series) 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 (although production of new episodes ceased in 1967), for a run of 124 episodes.