The way that South Park continues to reinvent itself in order to remain relevant is incredibly impressive, as too is the show's ability to include topical content that's incredibly up-to-date. It's faced its fair share of controversy over the years, but, love it or loathe it, it's hard to argue that the show is not without merit. After all, it's been on the air for more than a quarter of a century now, so it must be doing something right.