I have a few reasons why I want Arthur to end soon.
One: I was looking forward to the series finale. I have I feeling I know what would happen in the series finale. It seems as predictable as the Bionic Bunny 10th anniversary special was for D.W. in "Happy Anniversary."
Two: The writers tend to reuse plots. I think I first noticed them doing that a lot during season 10. Not only do they reuse plots, but they even reuse plots with the same character. Example: "Hic or Treat," "The World Record," "Arthur vs. the Piano."
Three: Every season has had at least one episode I was uncomfortable watching because it was too scary. And ever since season 7 I got more and more disappointed with the series because the series' scary episodes were getting scarier. The writers relied less on the D.W./Brain parallels and more on dream sequences and other elements I was bored or annoyed with.
I'm trying to figure out what TV series I like has the most seasons.