Dexter

A solid series that got progressively more unbelievable as the years progressed (look at our Season-Quality Correlation measure, which is off-the-charts). How many serial killers does Miami have? It's almost like Murder She Wrote, where a small town of like 500 inhabitants had enough murderers to last 12 seasons, with at least one murder per episode. In isolation sure, but on the whole, come on! Same with Dexter. One season ok, 8 seasons with the same gimmick: give me a break! (by the way, Dexter: New Blood seasons are not included in this analysis)

Series Rating: 8.6

Average Episode Rating: 8.6

Season-Quality Correlation: -66%