I would like to replace the internal drive on my THR22 while keeping the data. Back in the day this was possible with the HR10-250 and the SD Tivos; has anyone figured out what is necessary to do this with the THR22? Honestly, I don't care about the shows; what I care about is that my Tivo has garnered enough info about what I watch/record to make decent suggestions. I don't want to have to start this all over. I tried searching the forums, but didn't really find anything useful. Anyone have any info?