I was a big fan of The Office through the end of season 5, which I thought was a high point in the series, particularly the Michael Scott Paper arc. But I really lost interest halfway through the following season. The short stretch of episodes where Michael was dating Pam's mother was the first time I thought to myself that things were going downhill, and then the hour long "Pam gives birth" episode rolled around... and I bailed. There's funny-uncomfortable and then there's just plain uncomfortable, which is what I found that particular "very special" episode to be. I gave it another chance over the summer and watched the episodes I hadn't seen, thought they were largely unfunny, and decided I'd had enough.
On the other hand, Parks & Recreation, a show that is essentially a mimic of The Office's style, is still really funny. Maybe not as good as The Office in its prime... but it's close.