It's a shame that TiVo got into a pickle here. They were brought over in a deal with Sky (part of News Corp.), which I'm sure looked great on the surface...
It's been alleged, how can I put this delicately, that Sky made it uneconomically viable for TiVo to have a base in the UK for their hardware distribution in the UK...
Whatever the deal was, it wasn't mutually exclusive and appears to be lacking in proper Due Diligence. Sky still continue to developed PVR with NDS, the company they partially floated to the public in 1999. They also did a deal with the UK's Pace, to supply their public PVR offering, Sky+. In true Sky style, they persuaded Pace to supply the boxes to them at under manufacturing cost.
Sky, of course supplied something as part of the TiVo deal. When you call TiVo support in the UK, you get through to Sky's Scottish call centre and your Monthly direct debit is labelled Sky - which is pretty galling.