You can use an ir router made by xanteck but you need to use a univesal remote like the xanteck urc2 or pronto. all you do is put a router code at the begining of the function you want to do and it only operates the equipment on that zone on the router had multiple installations here and found that the pronto works best for this though. Only because of the pages you can build to switch tv's a little less confusing

Jeff