SPED changes I like in "Star Wars"

Extended shot of stormtroopers searching the desert with CGI dewbacks.
New shot of the sand crawler after "Look sir, droids!"
Most of the expanded Mos Eisley shots.
New Alderaan explosion.
Corrected perspective of the cell block corridor.
CGI X-wings during the Battle of Yavin.
Praxis shockwave added to Death Star.
Replacing the mat painting of extra soldiers in the throne room with real people.

SPED changes I like in "Empire"

Fixed transparent snowspeeder cockpit shots.
Replacing the chimp-faced emperor with Ian McDiramid (though the dialogue from the original should have stayed the same).
Adding windows to Cloud City.

SPED changes I like in "Jedi"