I have a 4-tuner TiVo Bolt, 1TB capacity. Currently I have it connected to digital cable with a Cable Card, but if I were to cut the cord, would I be able to use that TiVo to record from an antenna? I've searched Google, and this forum, but every time I enter "antenna" or "OTA" into the...

Can I use a 4 tuner Premier Hard Drive to replace a failed Hard Drive in a 2 tuner Premier? My model is TCD746320. If so, is there anything I have to9 do to make it run smoothly OR simply drop it in and it will work properly? Thank you in advance. :)