Neat. What else did they add in the new DVD set?
Well, Jabba doesn't look like shit anymore and looks more like himself from Episode IV. Although I still wonder how his ass got around with no legs.
They also replaced the original Emperor (a lady with a super imposed Chimp eye voice by Clive Revill) with Ian McDiarmid (the Emperor from I, II, III, and VI).
That's incorrect. McDiarmid played Palpatine in 1983's Return of the Jedi as well, then came back to reprise that role in Phantom Menace.
His filmography certainly states so.
He's talking about ESB, in which McDiarmid didn't play the Emperor (until they reshot the footage for the box set).