A State Of Arrested Development" is a combination of two FOX shows: the Sonic X dub and Arrested Development. The dialogue from Arrested Development and the animation of Sonic X is remixed into a creation whose storyline is part Sonic X and part Arrested Development.
Episode 11: Backed Into A Corner
Sonic and the others struggle to come up with a solution to defeat the Brits, and Chris isn't helping any.
Episode 10: http://www.dailymotion.com/Sonic24601/video/xncjd_a-state-of-arrested-development-10