maybe you have a bad RCA cable, the video is onthe yellow jacks, so temporarily swap teh red and yellow cabels at each ed and see if you get video but lose right side audio. same thing onthe cable fromthe DVR to the TV, but do not swap this and the one from RX to DVR at the same time, do one at a time to see which it is.

Thanks for the reply. I'll give this a shot. Much appreciated.