BASEketball, which was filmed before South Park ever aired, feature the show creators Trey Parker and Matt Stone. It has since blown up into full cult status.
It's the South Park search engine I created. It finds the best websites, videos and news about South Park.
The engine learns from its users and will become even better over time.
I have a suspicion that this may already exist but I did quite a few searches. One day I hope that fanpop will have these quizes, instead of links to the page.