none said:

Here's some possible changes from RotJ:

Captures are full res from the WG HD Splits, so not embedded since it would take a while to load. Times are approximate from again the WG timecode not the movie.

The first shot of 3po and R2, seems like sky replacement. The next shot in the sequence is significantly bluer in the 83 version.

http://img535.imageshack.us/img535/7591/swchangesrotj000000.jpg

09:21 - you all mentioned the Emperor Hologram in ESB, Luke in RotJ might have a similar issue. The horizontal bars look like they are there in the shirt but the face ones have been obliterated. 09:32, Luke's belt. 09:59

http://img831.imageshack.us/img831/7420/swchangesrotj000921.jpg

http://img193.imageshack.us/img193/9687/swchangesrotj000932.jpg

http://img809.imageshack.us/img809/9965/swchangesrotj000959.jpg

10:28 - The pan from Jabba to Han carbonite has been maniuplated:

http://img225.imageshack.us/img225/3553/swchangesrotj001028.jpg

http://img401.imageshack.us/img401/791/swchangesrotj001028a.jpg

http://img705.imageshack.us/img705/996/swchangesrotj001028b.jpg

45:24 - does it look like Yoda begins to fade a few frames later? or is it just the colors throwing me off.