So bad, but in a trainwreck sort of way.
Before it became fashionable to hate watch anything, I used to hate watch this show every year for the last few seasons just so I could laugh at how bad it was. It was one of those shows that was funny but for all the wrong reasons. I think that's why the writers ended it the way they did, where they just wrote off the entire series as a bad dream. Even they knew what a joke of a series it had become so said, "Eff it. Let's just pretend none of it happened, and then have Newhart talk about how absurd all the characters and situations were."
Anyway, the reason why I'm posting is that I started rewatching it on Decades to see if it was as bad as I remembered and yes, it very much was. It's just a cheesy show but oddly entertaining because of how lacking in self-awareness the writers and show runners were.