Random Facts You Didn't Know About 'South Park' (20 items)

(#6) The Pilot Wasn't Computer Animated
Every episode except the pilot was computer animated. Stop-motion animating using cut paper was used for the very first episode.
(#19) Trey Parker Used Music From His Student Film In The End Credits
When the production company logo appears at the end of each episode, the music that plays along with it is from the song "Shpadoinkle," which was used in Trey Parker's student film, Cannibal! The Musical.
(#7) Aliens Are Hidden In Background Shots

Aliens do exist - at least in the South Park universe. Aside from the obvious alien episodes like "Cartman Gets An Anal Probe," there are aliens hidden in the background in a majority of the show's episodes.
(#3) The First Season's Theme Song Had Some (Uncensored) Dirty Words

If you listen closely, Kenny sings, “I like girls with big vaginas/I like girls with big fat t*tties” in the first season's theme song. Because his voice is so muffled, it wasn't bleeped.
(#17) The Co-Creators Had Interesting Pseudonyms In The Original Pilot
Matt Stone and Trey Parker used the pseudonyms Tupac Schwartz and M.C. Goldstein in the credits of the original pilot.
(#14) Kyle's Hair Was Inspired By Co-Creator Matt Stone

Kyle's big, red, frizzy signature 'do was inspired by an early look of co-creator Matt Stone.