Probably not the solution you're looking for but what would probably work best is placing a centralized HTPC near the co-ax home entry point. Have that HTPC with cablecard ready tuners installed; one tuner per TV in the home. Have HTPC Extenders at each HDTV in the home. Each extender connects to the central HTPC via Cat5E. Each extender connects to each HDTV via HDMI.
Look to the
Ceton InfiniTV 6 Eth for tuning up to six channels of cable TV, simultaneously, and the
Ceton Echo to distribute those channels across your home network.
-Wolf sends