Currently have two dish HD receivers. 622 and 722 I think. Each runs 2 TVs. One HD and the other not. My wife is wanting to get an additional HD tv to replace one of the standard def TVs. It will be mounted on the wall, which is going to require a new cable run. So, here's the dilema. What cabling should I run? Is there some way to split a HD signal so that I can run two HD tvs off one box or will I need a third box? Is there some resource I can look to? The TV, as I mentioned will be on the wall. There's an electrical outlet there already, but I'll have to run cable. I plan to have the DVD player/receiver in a cabinet in the corner of the room. Should I run Cat 5e? HDMI? Coax6? Thanks.