Advertisements Four years ago I purchased a new 1T WD "My Book DVR Expander" (external drive) from Tivo and hooked it up to my 2-Tuner Premiere. It's been working fine, but I'm considering buying to a 4-Tuner Premiere (with Lifetime) so I can use a Mini with it. If I make the switch to a 4-Tuner, can I move my external drive over to it, or is the external drive "dedicated" to my 2-Tuner unit? What if I switch to a Roamio or Bolt instead... will I be able to use my external hard drive with either of those? (I realize this is a Premiere group, but I assume some have had experience with the other models.) I don't care much about losing programs currently on the external drive; I'd just like the extra storage space for new programs. Thanks!