#11: Dexter (2006-2013)
Dexter Morgan, TV’s favorite psychopath, may have a prequel show in Dexter: Original Sin, but a lot of fans wished the original series Dexter didn’t outstay its welcome. As season eight of Dexter drew to a close, there were a lot of plot holes, odd decisions, and poor storytelling. Many changes that happened after season four led to a general decline in show quality. Honestly, the fact that the show survived another four seasons is nothing short of a miracle.
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