I am currently RVing so I am using a phase III dish with an Aspen SLP-3 LNB and get a great picture through the HR22. I am a bit confused though in the fact that Ithere is only 1 connector on the RV and 2 on the receiver. I asked and was told that I could hook up a single cable but would not be able to record 1 program while watching another. ok, so be it. What I have found is that with only one line from the dish to the receiver, there are certain stations I cannot get. I have all the HD channels; MSNBC but not CNBC, etc. When I hook up the second line, EUREKA.. everthing works. Is this normal?