I know absolutely nothing about these devices. I have digital cable and would like to be able to record tv shows so I can watch them at my leisure. My cable company doesnt't offer cable boxes that can record. Is there a digital recorder that will work without having to subscribe to a monthly service? I don't care if I have to use the digital cable box as input to the recorder. Also, I have a TV card in my PC, but it isn't a digital one and the quality of recorded shows isn't very good.