Well, I wrote to the sales dept on the QuattroS:
To whom it concerns,
I am interested in purchasing a DNTV Live! QuattroS but have a few questions I hope you can answer for me.
I live in the United States. I understand that AU has a different broadcasting specification that the USA (PAL-B/G), but the card's information page states it handles both PAL and NTSC. With that in mind, would it be able to receive NTSC-M signals here?
Secondly, would you ship to my USA address, and if so how much would it cost? I would use my PayPal account to pay immediately.
Thank you very much for your time
I got a very short reply back:
This product is predominantly a DVB solution and of not much use in the USA as you use ATSC for digital TV, while it could be used as analogue tuner device, it is not advisable or supported.
I'm guessing that this means it can't handle our HD stuff, and maybe all our digital is a little "off" from theirs? Rats, that quad tuner concept was really awesome.