Mr. Hankey, the Christmas Poo aspects of Christmas from South Park to remain politically correct and inoffensive. The episode was written and directed by the series' co-creators Trey Parker and Matt Stone. The Mr. Hankey character was based on an idea from Parker's childhood; when Parker and Stone conceived the "South Park" series, they wanted to make Mr. Hankey the lead character. Heavily influenced by the "Peanuts" Christmas special "A Charlie Brown Christmas" from 1965, "Mr. Hankey, the Christmas Poo" was the first Christmas-themed "South Park" episode, the first musical episode, and the only episode in season one (and therefore the first time in the
What a Cartoon! Burbank, as the rightful Hanna-Barbera successor to produce original programming for the network and future projects. Two "What a Cartoon!" shorts, "Wind-Up Wolf" and "Hard Luck Duck", were the last cartoon shorts directed and produced by co-founder and co-chairman William Hanna. In addition, "What a Cartoon!" and spin-offs were the final original productions released by Hanna-Barbera. Creator of "The What a Cartoon! Show", Fred Seibert, left Hanna-Barbera in late 1996 to open up his own studio, Frederator Studios, and has persistently continued in the tradition of surfacing new talent, characters, and series with similar shorts "incubators", including (as of 2015)