We were given a Mitsubishi VS461R last weekend, with no manual. I was able to get the DVD player to work with it but I'm having a hard time with cable. I can get audio and video with a couple of channels but not nearly as many as we have available. The rest of the channels come across with the video scrambled looking but the audio's fine. Just to make sure it wasn't a cable provider problem, I plugged the cable into our old TV and it works fine. I figured out the antenna "A" and "B" inputs and have that set up. What do I do from here?