bazwaz:
Somehow i have managed to tune into Maori TV and it's an awesome clear picture ,sound also ka pai so i guess theres hope for those other channels like Prime too if i hold my mouth right ??
Maybe if i knew the right frequency i may be able to tune manually somehow??
If you managed to tune Maori TV then you must be receiving Prime as its on the same mux, same frequency, just different channel.
From your comments it sounds as though you are tuning analogue and not digital though in which case Prime would be on a different frequency.
Confirm you are scanning with the STB digital tuner and not tuning your TV?
How have you connected your STB to the TV?
You also don't seem to be aware that FreeviewHD with your STB is HD whereas a satellite STB will give you just a crappy SD picture.
I suggest you have a look here for help
http://www.freeviewnz.tv/
You'll find frequencies here
http://www.freeviewshop.co.nz/information/technical/digital-terrestrial-i-8.html
The Prime, Maori etc mux is 666mhz.