For a few years, I refused to let my children watch it, fighting my DH the whole time.
Then they made me sit down in front of the TV, and actually watch it.
Loved it ever since.
:-)
It's ACTUALLY a pretty insightful show.
i used to use it as a teaching tool with my daughter.
(she has Asperger's Syndrome, and that show is a good way to discuss social situations because it's so over-the-top and because she loves anything animated)