It depends on how your system is set up. On my Contessa, there is an input line from the roof dome and a seperate line from the sat input in the bay. I have to physically change the lines over from one to the other, and then the connection from the "service center" only works on the front TV. You can hook the outside and bedroom TV's up to the output of the satellite box in the front and watch the same thing on all three TV's, or you can split the input, use seperate satellite boxes and run then on different channels on different TV's, with the correct dish. I have directtv. but if I use my in motion dish, I cannot watch one channel on the front and a seperate channel in the bderoon, unless they are on the same satellite. I have a stand-alone dish on a tripod, with three LNB's and can watch whatever I want on any TV, but I ran a seperate coax into the bedroom and outside bay from the dish.