If you want more channels than just the free to air New Zealand TV channels, check out these options:
www.freeviewnz.tv
www.skytv.co.nz
www.tvnz.co.nz/ondemand
www.neontv.co.nz
www.netflix.com/nz
As an NMIT student, you will also have free subscription access to eTV via the Library.