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TV Shows That Went Downhill After Season 1

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23. 'Twin Peaks' (1990-'91)
We're not even counting 2017's Twin Peaks: The Return because it's such a different animal than its namesake. The original Twin Peaks ran for two seasons and the first is superior to the second. Though it's mostly because the first is so great. Season 2 had a lot to live up to, and less mystery to traverse.