I just upgraded to a tivo HD XL from my series 2 single tuner Tivo (which broke). I don't have an HDTV yet but I expect to get one in the next 12 months. I don't have digital cable yet either. I have analog cable and no antenna.
Therefore, I have no need for a cable card. I hooked up my tivo today and everything is working great. I have the cable hooked into the cable in but nothing hooked up to the antenna in. The cable comes up through the floor and is split with a 3dB splitter. Half of the signal goes to my vcr and half of the signal goes to Tivo. This set up worked well for my series 2 setup but it seems like it is unnecessary since the Tivo HD XL has dual tuner capability.
Here is my question: Can I hook up the rf cable that brings the second half of the split cable channels that is hooked up to my vcr to the antenna input on the Tivo HD XL? I know that the antenna input is typically for an HD antenna and one can therefore record HD channels over the air that way. However, I also saw that it can record an NTSC signal as well (pre digital switch over antennas).
I read that to use an antenna for example I would have to repeat the guided setup and then the Tivo service would look up the over the air channels in my area. In my case, I would repeat the guided set up and would want Tivo to look up the exact same cable channels that I already have for the antenna.
Thanks in advance.