I am concerned about how they will run the wires in my home. Through the FAQ's, it appears that receivers only need one coaxial cable. I currently have cable. There is a single coaxial run outside. This goes to a junction box in a closet with a splitter. All of the coxial cables from my rooms run to this central location. How many wires have to go to the actual satelite dish? I plan on purchasing the Top 120 plan and add international programming. I believe that a second dish is requried for the international programming. Would this require additional coaxial runs?