Finally watched ROTJ, so I've now watched the entire saga. No other changes apart from what I already knew. So the guy who's talking about an added midichlorian line is bullshitting.
ROTJ is definitely the best looking of the OT BDs, in my opinion. Yes, it still has its share of pink sabers and possibly the most abominable changes, but I still really enjoyed it. I sure hope the Darth Vader's cries of "NOOO" go the way of Luke's ESB scream, though...