Is it possible to set up all these to work together. I just bought a Toshiba DVD recorder and cant get all this equipment to work together. The tv is old and only has a coax cable input and the VCR is the same but it does have a Coax cable input and an RCA video in/out input. I would like to be able to set the VCR to 3 and control my cable box from that channel. Ive tried every way I can think of splitter and all and still cant get all of them to work with each other.