People on these boards are always bemoaning the fall of the Simpsons from its "Golden Age" in the early to mid 90s to the "drivel" of 1999 or so, which some believe has continued to this day. They complain that the plots have gotten more and more unrealistic. That Homer has become stupider and a bigger jerk than ever.
While I agree that Seasons 4-6 are probably the best in the series, I would caution against the above statements. You know, Homer was very stupid, and acted like a jerk, long before Season 9. And The Simpsons had wild, unrealistic plotlines very early on. I do agree that the show isn't as fresh any more, but I don't agree that Homer has gotten more idiotic or jerk-assed. Homer is a jerk, or rather just oblivious to everyone else's feelins, most of the time, but then he can go and be really endearing. This is as true this season as it was 8, 12, 15 years ago.