Here's my situation.... I want to add DirecTV to another room in my home. Gonna do iut myself. I'm gonna buy a cheap $50 basic HUGHES receiver (with card) and run a secondary cable off of my main line from the dish. The feed is actually for a TV PC card so I can watch satellite on my computer while I work. The problem is that the cable I am looking to split off of also goes to my Home Theater TV which has HDTV. Will splitting the cable cause noticeable HDTV picture degragation? Thanks in advance for your answers.