Advertisements I'm a long-time user of Tivo, with two lifetime sub's, and know a bit about them (just fyi). I just purchased a new Bolt VOX, the agent said the only one available was the 500 Gb model, which I'll have filled in no time. I said, I can always expand it, and she said "Yes, you can." However, I can't find any expansion drive available on the TiVo site. Have they discontinued this feature? If it is available, what are good sources where to buy it? Thanks!