Just had the Dish service with the 322 tuner. Didnt realize at the time it was one of those dual tuners - controls both tvs from one box. I have the one Tivo controling tv1 with the IR. Is there anyway to connect my 2nd tivo box to receieve and change channels off the 2nd output? Its controlled by a UHF controller for the remote TV and sends the signal to the other TV through the coax on channel 21.