That's right Digit it does come with the twin HD tuners.
The STB I have is hooked up to a Sat dish and has a card in it that get me free to air channels from all over the country (imparja, NITV, eastern states channel 7, and ABC for all states), kinda like foxtel, but no ongoing costs and only free to air stuff. It also gives me a lot better picture (stronger signal I guess) than using my standard TV aerial for local analouge channels. I don't think I can use the card directly with the TV, unless anyone else knows of a way.