If the response to last week's interview with Trey Parker and Matt Stone is any indication, South Park and its creators are unanimously, unequivocally adored by the A.V. Club readership. Possibly in repayment for that outpouring of love, the creators have made every South Park episode ever available streaming online, uncensored (for those of you who still giggle at 8-year-old cartoon children saying "fuck"). There are also a few thousand searchable clips to wade through when you're done with those 170 or so episodes.
Of course, it hasn't been exactly difficult to locate full episodes of South Park (or any show, for that matter) on the Internet, but the fact that South Park Studios' offerings are high-quality and, most importantly, totally legal, makes it more appealing than the, um, torrent of other options out there.