My God, it's full of BOOGERS.

Postmortem: First, thanks for making me look up "didactic". And agreed, Stewie is funny.

I've been a fan of South Park since the beginning. I still love it. I never got into Family Guy. Tried, but it was a different kind of funny to me (read: unfunny). There are episodes of South Park like you describe, but overall, I don't think they've lost their edge. I think they've actually gotten better the last two or three seasons and I am amazed how they can pump out great, biting content about subjects which are CURRENTLY in the news. They still do the boogers and bathroom type of humor, but the show has, IMO, gotten smarter and more clever over the years. But, to each his own. Not everyone likes South Park.

As far as Family Guy, it is rare when I even crack a smile at the clips that get posted here. I just don't see anything funny or clever. If it makes me laugh, I'll upvote (and I have). Like I said, to each his own... but I just don't understand the popularity of the show.

EDIT: Ok, I just finished watching the link you posted (I've seen it before, btw), and as I sat there I realized... maybe it isn't Family Guy I dislike. Maybe it's Seth McFarlane. I like Stewie. He was "doing" Stewie. Not funny, although I laughed at his dig on South Park. Anyway...

This has to come close.

http://www.videosift.com/story.php?id=14235

Musical - Check
Geeky - Revenge of the Nerds, how could it not be
Pollitical - Very weakly, but they are making a point. Go TriLams
Cute - What can I say, it has Booger in it.