SpilkaBilka:
This happens all the time. People have seen "alternate" footage in Star Wars. But it's on a tape they recorded over. Or lost. Or it was only aired once.
It's actually nothing more than a psychological phenomenon known as 'false memories', and because Star Wars played a big part in fans' early life this tends to crop up often. None of them are real. The great thing about Star Wars being so popular is that it's extremely well documented, and these things can easily be verified. Some people swear the Biggs footage was originally included in an early TV broadcast, that no one taped. Or was it an early screening? No, it was the 1981 re-release? Or was it, a rare VHS re-issue?
Not to cast aside your entire thing, I'm not trying to be rude. But especially when you consider how much work goes in to altering the negative or tape master for new footage, and the fact that this release was a multi-million-unit selling, practically record-breaking release, it probably is just old memories from your childhood playing games on you. I have a few memories of things that did not--and could not--exist, given the variables, and I think everyone does, even if they don't know it. It's a surprisingly common phenomenon, but hard to argue against because it's a perception thing--or PROVE, which is why we know there is such a thing as this. This is the first I've heard of ROTJ footage, other than ships crashing into the Death Star shield--something I swear I saw, but I now realized was from the audio cassette that came with the ROTJ storybook that made this cut moment a very vivid memory (in my imagination).