It's the cable. I did as you said, and connected a new cable directly to the living room TV to the second port, and it was working fine. I appreciate your help you two!

Hi, Today, our receiver, that has worked perfectly for the past year and a half (when we got it), now only shows tv in one room, the main room which is connected by air. My room is connected by cable. The television was working fine, and then the screen went to the standard fuzzy screen one...