There's a good reason this isn't available outside Japan, and it's the same reason nobody else has released a DVR that you can just buy once and use forever the way you can with VCRs and DVD recorders: the TV industry is blocking manufacturers from doing so, for all the reasons Therumancer listed. Whether they're doing it through bribery or threats, I don't know, but if it were legal, easy, and potentially profitable, they would have released one years ago. I assume the TiVo guys send some of their subscription money to the networks as part of some agreement, and that's why they make you subscribe in the first place. (What I don't know is how TiVos know if you decide to cancel your subscription, because I don't own one and the website doesn't explain, but I'm sure they have their ways.)