I trying to setup a Toshiba DVR into my exisiting configuration. Currently I have dish newtwork on a splitter to 4 different tv's with a VCR hooked up to one of them. I use coaxial cable for the whole setup, with a switch box to switch from cable or antenna for the local channels. I cannot get the DVD to work in this setup. It seems to be running when a movie is put in, but I cannot view anything. HELP!