the way youd have to set this up, is the cable box by where the cable comes in to the house, the tv out from that would go into the sender to a receiver and tv in another room, the remote ir thing is to change channels with the box in the other room, its a little ir transmitter you hang in front of the cable box ir receiver
i think my sender thingies are for a more casual use, rather than a main system and you wouldnt be happy with them
youll have to pay more than i did i fear