What do Bea Arthur, Chewbacca and Jefferson Starship have in common?

A Star War Holiday Christmas Special of course. I don't think I saw this when it aired. If I had, I definitely would still be having nightmares about it. Despite the terribleness, it's still better than "Attack of the Clones". [youtube=http://www.youtube.com/watch?v=asnVcbWQ2cg]