I was just watching it whilst eating my dinner. It was a re-run but I hadn't seen that episode before.
It was a clip show, I think, I saw the last five minutes. The two aliens (can't remember there names at the moment) go to the People's Choice Awards. One says to the other "There's Shannen Doherty! Didn't you have a thing with her?"
I was just like Shannen! You mentioned her! At least they weren't as mean about her as Family Guy the two times she was mentioned!