Bloody hell, do people really have such amnesia about BTTF? Go and dig up the thread - it's all over it. The even sadder thing is someone posted completely un-DNRed screen grabs of the first film that look truly amazing - and we end up with the garbage that is the Blu-ray release. The HDTV/Blu-ray comparisons are there. They're the same master. The Blu-ray is even more heavily DNRed. Then you see the completely unfiltered copy of the same master and realise just how much **** DNR Universal have heaped on the films to "remaster" them.
So when people say you should treat Jaws with scepticism until you see the disc, they really do have a point. However, given this is Spielberg, we might get lucky and he'll haul ass to keep the DNR off his film. But we can only wait and see. And pray.