Continuity: At the dinner table when Stan tells his parents about the election, he has a glass in front of him. The glass switches from being on his left side to being on his right side between shots.
Great sites
Quotes
Kyle: Cartman, you have such a fat ass, that when you walk down the street people go, "God, dammit thats a big fat ass!'
Cartman: They do not!!
Random guy: God Dammit, thats a big fat ass!
Trivia
The TV studio backgrounds are actually the military base backgrounds from "Towelie". You can tell by the maps on the walls. See more...
South Park (1997) - 1 mistake in "Douche and Turd"
starring Isaac Hayes, Matt Stone, Trey Parker (add more)
Updates: 
Series 12
Douche and Turd (season 8, episode 8)
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