I have a series 2 Tivo that is about 18 months old. It has been working fine until recently, and now when I go to view live TV, the image is black and it does not show the video on any channel. Everything else works perfectly - guide data is there, I can view old shows without any problems, etc. I went through guided setup again, which did not resolve the problem. I also have a splitter in place on the cable line, which I removed and hooked up the Tivo directly to the cable line without the splitter in place. I am using plain old analog cable without a cable box. Does anyone have any ideas? Is there any hardware that I can replace to fix this? Seems to me that the problem is with the tuner or the system board or something. If this cannot be repaired by replacing hardware, is there some sort of an external cable box that I can purchase and have the Tivo record shows from that?