Help!!!!Just hooked up new pn58. Awsome on blu ray (PS3). Not bad on other DVD's. Just horrible with SD sat. hookup (color, definition, clearity, you name it). I've tried various picture sizes, ect. Nothing seems to improve the picture. It's fine on a regular TV. We don't have HD reception yet, only SD through DISH. I must be doing something wrong. I've read the manual and still can't get it set up any better. This is our first big screen and I have not hooked up the receiver yet, just plugged in the cable. Any help would be greatly appreciated!!!!!!! Thanks - Mark