I am renting a place and I can't access the back of the tv but I want to hook up a dvd player. There is a VCR that's accessible - can I hook the dvd into the VCR and watch dvd's? I think the cable-tv comes into the VCR and then the VCR goes to the tv, there is also a set of the tri-wires going out of the VCR - I don't know where to but there is a place to put an input set. Thanks