I have just taken a look into this for you and it looks like that My Kitchen Rules NZ is not available via On Demand. I also checked the Online On Demand Schedule and it's not listed there. The UK one is listed and available.
The online guide is always handy to check if something is available via On Demand. If you have any further queries, don't hesitate to get back to me
I'm here to help if you need me.
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