Noticed something interesting tonight (Monday) as I was channel surfing. TVONE, TV2 and TV3 at 8:30 were all showing HD shows. They were Criminal Minds, Desperate Housewives and CSI. Of course the lack of DD5.1 on TVNZ was quite noticeable as I switched from channel to channel and then to TV3 and the sound space widened appreciably and the sub kicked in. I was watching on a PS3 using PlayTV.
Alas none of the shows captured enough of my interest to continue viewing but it's a good sign I guess of some progress towards more HD content on FTA.