For International Viewers: Unfortunately, TVNZ content is not available to overseas viewers. This is because we don't have the legal rights outside of New Zealand in our agreements with content providers. To allow this would put TVNZ at risk of keeping our great shows in the future!
For New Zealand Viewers: Sometimes a change of address or ISP provider can inadvertently show you as being outside of New Zealand, double check that your IP address shows itself as being within New Zealand. To do that you can use https://whatismyipaddress.com/.
Make sure that the time zone on your device is set to New Zealand.