I just walked through JB Hi-Fi in Wellington (down the escalator where the food court is).
They have a Cost+GST sale on all TV's. Apparently it started yesterday and will run during the weekend only. I didn't see any prices posted but I'm sure if you ask they will tell you.
I have no association with JB Hi-Fi, I just thought those in the market might want to have a look. It's just down stairs from where the Sony store are having their lease expiry clearance sale (very convenient).