Hello all. I have a TiVo HD TCD652160 with no hard drive at all, but with lifetime service. I also have a TiVo HD XL TCD658000 with lifetime as well. I was thinking I would buy a drive and be able to copy over the TiVo software from the working box to put into this box, but I worry that I might end up with a 1Tb drive with slightly less usable space than the one currently in the TiVo. All the instructions I've read talk about expanding the partitions to cover the whole drive and make it all available as recording space, but I haven't seen anything about possibly shrinking the partitions is necessary. Is there a way to accomplish this is I need to? Also, are the WD AV series drives still the only really recommended drives, or are there others that people are using these days? The FAQ at the top hasn't been updated in a few years as far as I can tell. Thanks to anyone and everyone that can offer any assistance or input. It's greatly appreciated.