Love the show. It's great! When I watch some of the shows, I STILL find myself sometimes saying "OMG, I can't believe they said/did that". I like that they really push the envelope...
I've never seen the Star Wars take-off, will have to look out for it.
The things I've really liked on it were: the one about getting an accountant, where they do the "When You Wish Upon a Star" number- and the "Road Picture" take-offs done by the baby & the dog- those are *inspired*.
It offers some good gags (and let's face it, for a cartoon babe, Lois is kinda hot), but too often it seems like they're pushing the envelope just to be pushing it. "Hey, lookit us, look how outrageous/tasteless we're being --!"