This reminds me of the "Puerto Rico Day Parade" episode of Seinfeld and how NBC wouldn't rerun it because of a scene where Kramer accidentally set a Puerto Rican flag on fire.
But anyway, that was a funny episode of South Park. I like how the credits read 'John Smith'...'Jane Smith' over and over.
I also remember the episode where Kramer got beat up beacuse he wouldn't wear the red AIDS ribbin during an aids walk.