While I celebrate the loss of Jersey Shore, I realize that the cycle that started with MTV and shows like Road Rules will remain unbroken. Some people just simply crave idiotic shit.
That said, on the topic of current kids' shows...yeah, crap like Dora the Explorer get the hell on my nerves. I understand teaching kids about cultural acceptance and such is a good thing, hell I encourage it, but they do it so blunt-force-trauma that its insulting to all but the youngest of children.
As for shows like Chowder and Adventure Time, yeah, they're stupid. They're downright idiotic. But, their one saving grace, the one thing that makes them so fucking entertaining for me, is their balls-out insanity. Seriously, I've seen horror movies that were several orders of magnitude less disturbing than the stuff you see in those shows. Then again, perhaps I'm simply fucked up so bad that I can laugh my ass off at a show (in this case, Adventure Time) where a dog gets a parasite in his head that orders him to poison a noble or die. Frame that in the style of a kids' show, and you've got the makings for some hilariously disturbing shit.