"South Park" has over three hundred episodes under its belt, the first of which premiered over 25 years ago. Trying to streamline the show to merely five essential episodes is a near-impossible task, but we're gonna try it out anyway. The goal of this list is not to recommend the five best episodes, or even the five episodes that most impacted the larger plot of the series. No, the point is to offer five episodes that will give viewers the best idea of how the show has evolved. I'll be separating the show into five different eras and picking one...