Does cable hdtv usually look worse than satellite hdtv? My brother has a Hitachi 53" widescreen. He subscribes to Cablevision. The hdtv channels are not impressive looking- they look about as good as a DVD. In contrast, I watched Dish satellite hdtv at a friend's house last year and it looked outstanding - it left me drooling it looked so good. Does anyone have any ideas why Cablevision's hdtv channels are umimpressive looking compared to Dish hdtv?