What shows suffer the most from writers refusing to tie up plot lines and instead string them along into longer and longer yarns?

The original post: /r/television by /u/TheBanishedBard on 2025-10-18 23:20:54.

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I’m watching another crappy medical drama (why are there so many of these?) and I’m realizing all of them are like this. They literally never wrap up plot threads into any satisfying ending. It’s just one twist and complication after another.

What shows suffered the most from lazy writers just drawing out stories until viewers lose track of everything and give up? Bonus points if the writers count on the audience forgetting things and cheating with outrageous continuity errors.