Eh, alright....
Maybe I'm just cynical, but this didn't seem like anything too new or special to me. To many other movies like this are out here. Tomorrow's Nobodies, Waterman, Erik the Juiceman, etc etc. The list goes on and on and on and on...
It's clear you've spent some time on it, but I think you should have spent more. The characters weren't all that well drawn/animated. The mouths seemed really half assed and all. Maybe that's just your style and all, but it just wreaks of laziness.
You need to work on your sound. Spend some extra time to normalize the voices so there's no sudden change in volume when different characters are speaking. You should also compress your music. There are like only a trillion tutorials out there, even one here on NG! Go read up on it. Maybe add a play button too at the end of the loading screen...
You also really gotta sit down and do something with it. What I mean is, there was no point to this series at all. Oh wowie! A King of the Hill parody! Yippie! Seriously. You could have done a lot more with what you have, but you wasted it on a stupid parody. And the first one wasn't all that great either. You need to do some work with it. Give them more intaraction, something to do. Give it a point, and do something to make people more interested. Sure, the KotH thing was kinda cute, but it just dragged on. And since it ended there, I really don't want to see any more of this series. Improve it some, and you could have one heck of a hit on your hands.