OK...this sounds like a dumb question...once you hear why I replaced the old one. The first one I had, had an issue with holding black to the edge of the screen... while models in stores or friend's TVs with similar settings all held black fairly close to the edge. The middle of the picture looked perfect to me on the first set. This new set holds black much better to the edge of the set. The overall picture looks darker though...as if I don't have as much detail as before. Both sets were set using Avia, and although the contrast setting is somewhat subjective, I think I got them very similar. What gives? It is hard for me to say, but the middle of the 1st set almost looked better, while the entire uniformity of this set looks better. Am I just halucinating :b? Would a proper grayscale calibration make a difference with the amount of detail I will be seeing on this new set? Thanks.