I have a HD DVR that is now working fine. I moved the DVR from one wall to another and for some reason ever since I cannot get a clean signal to tv2. I am not familiar with diplexers and not sure how to hook this all back up. At the time I disconnected everything, I thought the diplexers were splitters and didn't pay much attention to how it all went together. I do get a very noisy signal to tv2. The picture is very poor. How do I hook my system back up to get a clear picture to tv2? If needed I can be more technical with descriptions of hardware. For the time being I figured this is good enough.