In the living room I have a Hitachi HDTV, the basement has a Sanyo 60HT. I want to install a dual LNB, HD DirecTV system that will provide both systems an HD feed. What equipment do I need? Any recommendations on manufacturers? Also, are there any DirecTV receivers that feed an HD signal from the sat and OTA (from antenna) to the set/projector or do I have to purchase a separate HD box?