I just purchased a 55 inch Philips LOCS monitor that includes DVI and RGB inputs. I hooked up a Samsung DVD player to the DVI input and a Samsung DirecTV HD 360 receiver to the RGB plug on the monitor. I set both the DVD player and HD receiver to output 720P. Did I make the right choice or am I better off setting the units to output 1080i? The Philips monitor can handle all the popular HD formats so I am free to choose between them. At 720P the picture quality from both the DVD player and HD receiver is stunning.