This is a very elementary question, I'm sure. When we moved to a new home a couple years ago, it was wired in all bedrooms for cable/satellite(?) TV. We have been using one DISH receiver in one bedroom and now would like to move it to another. When we "plug" it into the wall (the receiver into its connection and the TV into the AC), it doesn't work in the new location. Any ideas on where we should start to make it work?