The Melbourne Cup in New Zealand is typically shown on TVNZ1/TVNZ+ (free), with additional rights and streaming options sometimes available through NZ broadcasters or networks carrying the race in a given year. If you’re in New Zealand and want to watch live, your best bet is to check TVNZ1 for broadcast coverage and/or TVNZ+. You can also stream via TVNZ+ if you have access to that service. Additionally, NZ racing coverage may be available through Sky Sports Racing or Racing-related streaming platforms depending on the year and rights. Direct answer:

• Primary NZ TV channel: TVNZ1 (free-to-air) and TVNZ+ (streaming) for live Melbourne Cup coverage.
• Alternate/preview options: NZ racing coverage may be carried by Sky platforms or other regional broadcasts depending on current rights.

If you’d like, I can confirm the exact NZ broadcaster for the current year’s Melbourne Cup by checking latest listings.