Yes. There are some TV shows I am not a fan of but my friends love. One example would be the Big Bang Theory. I have watched some episodes and just cannot get into it. Then again there are some TV shows I love that my friends don't like. Each to their own
Many people say The Simpsons started to suck around Season 8, but I think it was around Season 11 when it started to slip, when they had the fake Skinner story and killing Maude off.
I also think Glee has some good musical numbers in it, and has a brilliant cast, but storywise the show is god-awful and needs a right kick up the bum. It especially needs to work on its characters - Mike and Tina are basically there most of the time to make Asian jokes about, and the show seems to have an obsession with shoving Blaine in our faces.