I have my dish located at the top of a VERY steep roof of a 2 story home. From what I can see, there are two coax cables coming from the dish down into the attic. I have two single tuners, one in the family room and another in the master bedroom. My son gave me his old 508, and I was wanting to activate it and hook it up in the family room so that we could watch tv with my current tuner while the 508 records a different program. Question: Is there a switch that I can attach to the single cable coming out of the wall in the family room that will allow me to connect both of those receivers to the family room tv? Or does the switch have to go outside or in the attic? I was hoping to not have to do anything outside. Any and all help and suggestions are greatly appreciated.