I am having a problem setting up my VK87A. I have basic cable TV (no cable box). The TV in the living room has 2 RCA jacks in both front and back. The one in the bedroom has 3 jacks in both front and back. How do I setup the VK87A with the configuration I described? Do I HAVE to have a cable box and/or VCR? I am on a fixed income and can't afford extended cable and don't record or playback to/from my VCR. Thanks to all who may reply, for any and all help.