I loved the first season of Glee. I really loved it. The 2nd was ok, and I stopped watching it after the irish guy joined them in the 3rd season.

I loved the first season. The second season wasn't bad. Now it's just kind of meh.

I think one of my big annoyances with this season is they keep focusing on Brittany and she's just not that funny anymore. Before she actually became a main character, she was funny. Her little one-off lines were always gold, but now she just comes off as a bitch and the stupid thing is just beyond old. When I saw they were actually doing a second Brittany Spears episode I almost turned off the TV and quit the series.

Now The Wife and I just watch it laugh at how bad it is and because we started it, we might as well finish it.

-edit-

And forgot my other problem-- fucking autotune.

Yes, the show has always been autotuned but each season the amount they use it just gets more and more ridiculous.  I guess that's what you get when you fill the majority of your cast with people that really have no business being in a musical TV show.