Of course the OT has always had bad bluescreen/greenscreen along with the matte lines until fixed by revisited. The thing that I am still noticing, at least in ANH:R was the almost cardboard cut out look of some fx and objects. For example, many of the explosions in the revisited battle of Yavin have absolutely no 3d shape to them and look and in a way cheesy. The blue TIE's just make that cardboard cut-out look worse. The PT, even though filled with terrible CGI, doesn't have this problem.