Help. I set up my house w/ host & slave TVs. the slaves run off of Coax runs I dropped in a couple rooms, off of the old SD D*Tivo boxes I had. They had 2 coax outs. The HR10 has NO Coax out & Im struggling to find how to convert one of the outs to a female coax (F Connector) run. I bought a standard RCA branded converter, but it ONLY works for gaming & DVD signals (not sure how that is possible, but it KNOWS & does not covert my Tivo out signals). I dont want to go w/ a wireless transmitter, too expensive. Please help me solve this riddle & provide any part #s you may have.