I'll have to wait until I get home from work to see it, but I hope it goes something like this:

VADER: What is thy bidding, my master?

EMPEROR: Darth, I was just wondering, have you heard from Tarkin lately? He hasn’t called me in ages. He still working on that Dark Star project of his?

VADER: I beg your pardon, my master?

EMPEROR: You know, that space station with the big laser on it.

VADER: Master… the Death Star was destroyed three years ago.

EMPEROR: Oh, right, right… Well. Pity about that. Let’s build another, shall we?

VADER: Yes, master.

EMPEROR: Just how did that Death Star get destroyed, by the way?

VADER: A young Rebel named Luke Skywalker, master… it was on the news.

EMPEROR: Oh, well, I was watching Matlock re-runs. Skywalker, you say? What is he, a relative of yours? Cousin or something?

VADER: He’s just a boy.

EMPEROR: Well, bring him on over to the dark side anyway, will you?

VADER: He will join us or die, my master.

EMPEROR: Before you go, be a good Sith and fetch my slippers, would you?

VADER: Master… I’m thousands of light years away…

EMPEROR: Oh, right, right. Holograms, right. What will they think of next? Mas! Mas, my slippers!

VADER: … sigh.