I have two HDTV's connected to an OTA digital antenna, capable of excellent HDTV reception. I was just wondering if the TIVO series 2 80 hour receiver would degrade the fantastic HDTV reception I am enjoying now. The TIVO HDTV receiver is way out of my budget, unfortunately. Also, I was told that if all you have is an OTA antenna, TIVO service would not be feasible since I can only receive about 20 channels. Is there a way you can cut the TIVO off if you want to watch HDTV straight from the antenna, without disconnecting the TIVO box?? Any helpful info appreciated.