In that episode, the joke is that Mark Hamill is being chased around by Luke Skywalker, and that Luke is like this intense nutjob. And he's running around the back of the muppet theater shouting, "Remember Alderaan!" So, there's that.
Also -- for one of the most fondly remembered moments of my childhood, I have to say that the Mark Hamill episode of the muppet show...kind of sucks. Way below Harry Belafonte, Peter Sellars or even John Denver. But way better than Mummenschanz, to be fair.
But was there a special effect better than the luxurious locks of one Mr. Ronald D. Moore? I think not.
Superman is what is good in the world.
Come on, io9 -- how about a feature, "How to Make a Good Superman Movie."
By hook or by crook, Evil Al Hologram Cylon will make you a number, not a free man.