we got a sony bravia a couple of years ogo, think its a 41" excellent quality screen. we walked around and looked at the poictures on the screen, all were playing the same DVD and you were able to compare the picture quality.
sony make good screens, noty the most aesthetically pleasing, but quality seems good.
if i remember rightly over a certain size and all the screens are made by LG (i think) or it was a while ago, as they were the only ones able to do it on a large size screen so were manufacturing for all the other manufactures. may not be the case now.