As I've been saying, this show had already been dead to me for quite some time. The first few episodes of Season 18 were among the last I willingly watched, and I thought with the return of former writer Ken Scarborough, who was among those instrumental writers of the earlier seasons along with Joe Fallon, that that would be a saving grace for the show, and while the episodes Ken had written did have more of a classic ARTHUR feel to them, the endings were really weak and anti-climatic, such as "Surprise," where a grudge-holding Francine tries to concoct some kind of scheme to ruin her big sister Catherine's birthday party for not inviting her, only for her to decide against it at the very last second - all of that build-up for nothing.
I watched Season 20 out of genuine curiosity since it was an anniversary season, but honestly, nothing stood out about it, nor did anything even feel special about it whatsoever, and, as I've said, my PBS stopped airing ARTHUR altogether afterwards, so I've seen absolutely nothing from Seasons 21 onward.
As you can tell from this thread that I started over a decade ago, and has never died since then, it's felt like the writers had been out of fresh ideas for a long time, but definitely in recent years, not only has the show not felt fresh, it's felt tired as well.
It's definitely agreed, then, that this show more than deserves to be put out of its misery. . . . Now, if only FOX would have the same kind of mercy on THE SIMPSONS and FAMILY GUY, and some are already wanting Nickelodeon to end THE LOUD HOUSE now before it reaches this point like SpongeBob - including the fired creator.