Britbox is geo-restricted service not available in New Zealand. To access it in NZ, you need to get Surfshark VPN.

Britbox is geo-restricted service not available in New Zealand. To access it in NZ, you need to get Surfshark VPN.
With the help of a VPN service, you can unblock 9Now in New Zealand and watch your favorite content.
To watch TVNZ outside New Zealand and abroad, one needs to get a VPN service that unblocks TVNZ from abroad.