Wether or not you find it funny for Family Guy, Robot Chicken ruled Family Guy's sorry ass when it came to parodying Star Wars. The long 1-2 minute COPIES of the original scenes (did we really need poor cg animations of already established scenes?!), weren't that interesting compared to Robot Chicken's.
Frankly I'm done with Family Guy, I was incredibly bored during that episode, and maybe it's just me but I can not stand the whole Pedophile/Chris bit, it's lame, and was never that funny. Creepy, not funny at all.
Pass on the whole episode. Oh add to that, South Park rules Macfarlane's pop-culture nostalgia (read: manatee gag/plagarism) ass.
EDIT:
http://www.aintitcool.com/node/34165
Please god no more of this crap, if I wanted to watch people ruin the original movies even more scene for scene I'd pop in the special editions.