Hi...a real newbie here....this may seem silly, but in my rec room, I want to be able to use two different cable receivers on the same tv because I have one receiver that has been "loaded up" with all the channels except hd channels, while box # 2 has hd channels (and not much else). I have tried to do this (feel I am very close) ....I cannot get audio on box # 2. I think if I had more than one set of ports on the back of the tv it would make it easier. What can I do to get audio on box # 2 ??
It sound like your TV may have only 1 input for all the legacy (non-HMDI) connections. Your should connect box 2 (HD) with HDMI to get the HD channels in HD. Connect box one with the best combination of av that the box and TV can support. Component Video would be best if the box has that.