Hello folks, I'm trying to set up an inexpensive home theater with the following components: Panasonic Viera tc-l37s1 Sony STR-DH540 Motorola DCT 2500 Roku I have the roku/receiver/tv part working fine, but I am not sure how to get the signal from the cable box to the tv through the receiver. Cable box has no HDMI, and the receiver has no S-video, so I am using the rca style Video feed. Initially, the only connection I had from the receiver to the TV was the HDMI, and that worked fine for carrying the Roku signal, but not the signal from the cable box. I worked around it by running the video RCA cable directly from the cable box to the tv, but it seems like there should be a way to pipe that signal to the receiver, then on to the tv. Do I need one RCA cable from the cable box to the receiver, and another from the receiver to the tv? thanks!