Sounds a little more complicated than anyone here really knows, including Traynorm. To me, it doesn't make much sense, and doesn't seem very easy. This would involve modulating the signals from the seperate boxes to seperate channels....distributing the RF signal through the house, and using some sort of either RF (the cheapest way to go) remote system, or IR repeaters (the more expensive route). A Pronto PRO only communicates with RF to it's base station, it won't learn any RF commands, and is not designed to be a universal remote for RF receiving components. The best RF remote method would be the DSS boxes own RF remotes. This seems kind of dumb to me...what if someone else is watching or recording a program on the box you start changing? But then again, I'm not sure I can think of a better way, except to have enough receivers for each TV. Anybody else got other ideas?