I have analog basic cable. I recently discovered I can receive local channels in HD by switching my TV's tuner to digital (I bought my HDTV for HD-DVD). The HD channels are coming in on the cable connection. The channels are numbered using the over the air system: 2.1, 4.2, 5.1 etc. Can I use the TivoHD to record my analog cable and the five HD channels I receive? Can I tell the Tivo I have basic cable and an antenna (selecting the just the channels I receive) to get guide information? It looks possible, but I would like verification before I order the box from Amazon. Thank you for your help.