South Park

I never cared much for the series (a bit too crude for my tastes), but it does have a huge following. The reviews from imdb users suggests episode quality has decreased significantly from its initial seasons (a negative Season-Quality Correlation simply indicates that episode quality does indeed go down over time). Finally, a counter-intuitive fact emerges from the data: the more episodes that are ordered per season, the better the season turns out to be. So with South Park, quality and quantity go hand in hand, surprisingly.

Series Rating: 8.7

Average Episode Rating: 8.1

Season-Quality Correlation: -55%