Sky EPG ..?
I guess the big question is whether the EPG data will include Sky channels. My understanding is that like Australia, the TiVo service here will be a one-off purchase of the TiVo box, and no monthly EPG charge. But that would not be an ideal solution if the available EPG data doesn't include EPG for Sky channels. My guess is that Sky will try not to allow its EPG to be used for the TiVo - in an attempt to protect its MySKY revenue.
On the other hand, TVNZ can choose whether to allow Sky the rights to broadcast TV1, TV2 and the FTA digital channels after the current agreement runs out. News last week was that they would allow Sky to broadcast those channels. So you'd hope that they've done a deal that requires Sky to provide EPG data .... after all, you'd still have to purchase Sky and have a decoder to actually get the programmes.
Worst scenario would be if TVNZ cannot provide Sky EPG data .. which would emasculate a lot of the TiVo's advantages when used in conjunction with a Sky box.
So fingers crossed someone in TVNZ has done their homework and organised a suitable deal.
Philips TiVo Series 1, Turbonet, 1 x 250GB, NZ Emulator - Satellite (Sky Digital)