It's not readily apparent to most that each channel provider adapts its app to run on the Roku operating system, provides it to Roku, and maintains it. The only channels that Roku maintains are their own The Roku Channel, the Roku Media Player, and several Roku information channels. For everything else, Roku just provides the platform on which they run.
For additional services you'd like to have available via Roku, contact them and let them know.
Note, though, that TVNZ is state owned and as far as I can tell is offered only in New Zealand. Also, there may be licensing issues that prevent TVNZ from distributing programming outside of New Zealand.
Roku Community Streaming Expert
I am not a Roku employee, only a user like you. Please, no support questions via private message -- post them publicly to the Community where others may benefit as well.
If this post solves your problem please help others find this answer by clicking "Accept as Solution.".
Ultra 4800 | Streaming Stick 4K+ 3821 | TCL Roku TV 43S245/C107X
