Which show would you retcon to finish early?

We all have favourite shows that went on too long. Ones that either declined in quality (The US Office) or simply deviated too far from its original premise (Prison Break, Lost).

We also have shows that were cancelled without a resolution (Deadwood, The Last Man on Earth).

Sometimes, shows are brought back and the quality suffers (Arrested Development).

So my question is, if you had your current knowledge and were able to retroactively cancel a show earlier than it actually went, what would it be? This would leave the show on a high.

I say current knowledge because it would remove any subsequent thoughts of "that show was cancelled too early".

For me, I have a few:

• Ted Lasso: The first season gave me warm feelings unlike nearly any other show. The second season was a nice continuation of the story, albeit with some weaker plots (Rebecca and Sam). The third was just a mess, and it kind of fizzled out. I would go back and cancel the show at the end of the second season.

• Mythic Quest: I consider the first season of this show to be one of my all time favourites of any comedy show. The seasons that have followed have been poor IMO, and I almost wish I could leave the show as a standalone mini series after 1 season.

• Dexter: Once Rita died, this show just went to shit. I would have loved to have seen the show wrap up after season 4, leaving me wanting more and avoiding so many terrible moments that would later come.

What are yours?