Mr. Hankey, the Christmas Poo classic Christmas specials with their own irreverent "South Park" twist, and so they watched the famous 1965 "Peanuts" special, "A Charlie Brown Christmas", repeatedly during the production process. Parker said, "At this point, we just sort of wanted to do a Charlie Brown Christmas "South Park" version. That [special] was definitely a huge part of my life growing up." The episode was considered the first "South Park" musical episode, and included such songs as "Mr. Hankey, the Christmas Poo", "A Lonely Jew on Christmas" and "Kyle's Mom is a Big Fat Bitch". Parker and Stone were initially concerned about making
What a Cartoon! of the original shorts produced under Fred Seibert's management for "What a Cartoon!" by Hanna-Barbera. The shorts are listed in the order that they originally aired. After "What a Cartoon!" ends its run in 1997, Fred Seibert left Hanna-Barbera in 1997 to launch Frederator Studios. In 1998, Sam Register, who was Cartoon Network's vice president at the time, took over What a Cartoon!, and two years later, turned them into "The Cartoon Cartoon Show". Register would later create "Hi Hi Puffy AmiYumi" for Cartoon Network in 2004. Two Cartoon Cartoon shorts were produced in 1998 and one in 1999. All