I have just bought a "Music Television" Model MTV-540STB set top box from Coles for the incredible price of $75.
I am in WA so I don't know if this is available nationally or just in WA.
It is a nice neat unit & setting it up is a doddle. Reception appears to be excellent - but then my analogue reception is also very good so YMMV.
It even has a RS232 port for firmware upgrades !
Dave