Corrected entry: This is only on the new DVD. When the 4 Tie Fighters are attacking the Millennium Falcon, there are shots of the Tie Fighters with a faded red box that surrounds them.
Corrected entry: As Han jumps through the blast door, he fires his gun one last time as seen by a puff of white smoke but there is no laser blast from it.
Corrected entry: If you look carefully during the prison escape you can see a few pieces of brass shell casings falling from the "blaster" rifles. Depending on how well your tape heads work in your VCR, you may be able to hit the pause/slow button and see the breach open on Han's gun as well, but if it hasn't been cleaned the sides of the guns are too blurred to see the bolt coming back.
Corrected entry: You'll have to use frame by frame on this one, and jog it back and forth to see it. When Luke and Han are first arguing about whether or not the Force exists, Luke turns off his light saber. In the frame just before he turns off his light saber, his hands are in very different positions from the frame after he turns it off. Also, an item on the table to his right disappears, and the little sphere that's been firing at him rotates ever so slightly.