TIEace sent in this note about a Star Wars reference on Futurama:

There was a Star Wars reference on Futurama again. It was a small, subtle one. Bender get's hit on the head, and an electric pulse flips him over. He starts wriggling and beeps like Artoo. I don't know if this is what they where going for, but it seemed like it to me.

Jake sent this in about it:

On Futurama, Bender, who has shortened his stature to fit in with a flock of penguins on Pluto (making him R2D2's size) gets swallowed and spat out by a killer whale. He lands face down and emits a series of R2-like beeps and whistles before shorting out. This is a rip on R2's giving a swamp monster indigestion on Dagobah after Luke's crash landing.

And JediMistressDragon had this to say:

On tonight's Futurama when Bender gets eaten by the killer whale on Pluto, then spat out, to end up upside down on his head, he make's a R2D2 sound as he falls onto his back. It took me back to ESB and that scene of R2D2 falling in ANH!

Jake also reported this reference on The Simpsons:

On The Simpsons, Duff Man, who has earlier taken the side of Corporate Duff Man against righteous Homer, is forced between choosing the right thing and saving Homer or throwing him out of Duff park (home of the Springfield Isotopes.) Duff Man rebels against Corporate Duff Man, picking him up over his head and throwing Corporate Duff Man over the outfield wall. This, of course, is a rip on Darth Vader chucking the emperor over the (always present and convenient in the Star Wars saga) pit in the throne room at the end of Return of the Jedi.