Have you try using a spltter (before the cable box connection)? You will be only getting the regular channels; you will no be able to get HD. channels. HD. channel needs the box. That's what I think.
Just got an Hdtv DLP TV, subscribed to digital cable and had the HDTV cable box installed. It was the cable guy's first day on the job, and I actually set up most of the connections myself because he was clueless. My cable company refuses to attach the cables to anything but the TV, and will not answer questions about connecting to a VCR. I want to be able to watch one station and record another, as I have been doing for years with the old setup. I have a Samsung TV with DVI connections. My DVD player is hooked up thru a HDMI connection. The cable box is a Motorola DCT6200 with component and DVI connections. Can anyone explain this to me, or refer me to someplace where I can get some info? Thanks!

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic