You do't need an HDTV to use one of the HD TiVo.
However, if I were in a position to be OTA only with good digital OTA reception, I would likely opt to build an HTPC with a dual ATSC tuner card, being 95% of what broadcast TV I watch occurs in the evening, so can be powered for only then. It would also play online content available.
However, if I were in a position to be OTA only with good digital OTA reception, I would likely opt to build an HTPC with a dual ATSC tuner card, being 95% of what broadcast TV I watch occurs in the evening, so can be powered for only then. It would also play online content available.