Great answers thank you all!! The main reason why I asked it was that I own a Sony Bravia Triluminos KDL W9 series TV and both DVD and BD versions of OT didn't look so impressive. As for some especial effects in the former, ships (especially in motion) showed up as late '70s - early 80's technique, the colorization interaction between back ground and front side artificial moving objects was too primitive and obvious (fighters in Death Star battle, Tie-fighters' attack on the Falcon, Imperial Star Destroyers in ESB looked like they were fixed and the surrounding context was being moved or something like that), all lacking flexibility and 3D illusion feel like it would be really made of rock materials - steel, iron and so on. SE graphics looked awful, you could see not real, but pure CGI. Interesting though, seeing at theater produced opposite impression.During the attack on Falcon episode in ANH, I clearly saw green boxes around one of the fighters.
As for BD, was disappointed either: all the artificially created objects (Star destroyers, fighters) looked as perfectly designed 3D animation and no more. Can't they achieve more real-like effects or Lucas just returned to SW saga too early and even back in late '90 CGI technique didn't arrive at highest real-like delivery? Or is it all about current LCD development? Are projectors really better?