DVR Upgrade sells new Tivo Premiere with internal 1.5 TB hard drive, meaning 236 hours of HD recording. For $250. (AFAICT, they are new with internal HD.) OTOH, BH Photo sells Tivo Premiere XL with 150 hours. For $213. Vann's sells it for $200. Is the larger recording space worth the trade-off in lost features (seemingly only a glow in the dark remote & THX certification)? If one buys from a 3rd party, are there glitches or issues in activating lifetime with Tivo? I suppose, in any case, that I should pay for a month's fee first, in case I decide to return the Tivo!