I'm talking about the standard stuff used for cable/sat TV used in the home, RG6 I think. Anyway, we have three home runs in our house. One is going from the sat dish to the bedroom and is fine and is not part of this issue. #2 goes from the sat dish to the living room and works fine. #3 goes from the same exterior part of the house to the office and was used for cbale internet. We switched over to DSL a couple of years ago, so the cable has been dormant. The exterior end of it was connected to a spliter inside the big empty box from comcast on the exterior of the house. All three home runs, the sat dish, and the comcast box are in the same location. Due to redecorating, we need to connect the TV to HR#3. I disconnected HR#3 from the comcast splitter, connected it to the same place regarding the sat dish as HR#2, and hooked the sat box to the terminal on the wall inside the house (wall plate thingy). We get no signal to the sat box. I switched things back as they were and the sat box, TV, and HR#2 work fine 99-100 on the signal strength. Something is wrong with HR#3, or me because I can't figure this out. There are no mystery accessories that I can see like comcast filters etc. HR#3 is simply a coax cable that sticks out of the house and goes to the wall plate inside the house. There is nothing inside the wall plate box like a filter. We never had any problems with the comcast service through HR#3. The house is 9 years old and we are the fisrt owner. The compression connector on the HR#3 looks as good as the rest of them, no obvious problems. Is there something that comcast could have done to this HR#3 to make it not carry the sat signal?