The Tivo HD is Freeview licensed in Australia, which is one of the reasons 30 second skip was disabled and fast forward speed reduced.

I stopped using Component years ago, but just dragged the cables out, to see if anything has changed in newer firmware. When the TiVo is set to fixed 1080i, I can confirm that I still get 1080i using component in Australia.

It is possible when setup for NZ that this may have been be restricted by TVNZ?

Peter.