Current - analog tv, converter, Tivo Series 2 w/lifetime Going to - digital HD tv, no converter, NEED(?) to buy HD Tivo Looking at used Series 3 Tivos. I vaguely remember when I bought my Series 2 that I needed a specific Series 2 model to hook up over-the-air (to an antenna). Maybe I'm remembering that incorrectly. Short story - Do all Series 3 or Premiere Tivos hook up over-the-air out of the box? I don't want to buy one and find it only works with cable or satellite. Another question - I'm pretty sure I will be required to buy a new Tivo. Tivo has indicated my Series 2 will be able to continue to record from the SD channels, but as far as I can tell those stations don't even exist any more.