You guys are sounding more and more like zealots by the moment. Why would God make me choose between Him and South Park? There is no commandment: "Thou shalt not watch South Park." I don't feel that God would be ever be so petty so as to disallow something that makes me laugh. God is above our mortal emotions, is He not? South Park has great messages, and by focusing on only the silly humor, which may I say they do about everyone and everything, people are merely missing out on some of the most brilliant social/political/moral satire around.
You just keep the compliments coming! after all, Jesus was a zealot.
You are to be in the world, but not, of the world. That's the key.