I've noticed quite a few shots that looked very dull (colourwise) in the DVD release than the SE release.
A few instantly come to mind since they're key moments that I remember, but if you notice anymore, list them.
Throughout the three films, I've noticed several explosions are lacking colours and look almost black and white, meanwhile many explosions are too rich with colour.
ANH
- Death Star Exploding looks almost black and white, including the ring, except for a bit of blue rain on the right edge of the explosion - meanwhile Alderaan is a BEAUTIFUL explosion of orange and red which looks much better, and the ROTJ DSII Explosion is normal colour.
ESB
- Snowspeeders shooting up the downed AT-AT, the fireball isn't as fiery as it was before, looks washed out, one of my favourite shots.
- Several shots of the Falcon in the asteroid field look very brown.
- The shot of the Falcon flying into the Space Slug tunnel used to have a bit of blue on the walls, but now the shot looks like it was greyscaled and had brown shaded over it.
ROTJ
- Wedge and Lando's attack on the reactor, the room is a nice shade of blue, then when Wedge attacks the power generator, the scene looks almost B/W, same goes for the shot of the Falcon bursting the generator itself and the shot of the reactor collapsing. The gigantic explosion doesn't look as fiery as it used to...
LOOK!!!
http://ptgreat.freewebspace.com/original2.jpg
http://ptgreat.freewebspace.com/original3.jpg
Lowry did a brilliant job for everything else though.