rolfw said:
As far as I know and I'm not theoretically knowledgable, a carrier wave is neither analogue nor digital until it is modulated. I'd be interested to hear whether that is actually the case.
There are suppressed carrier systems in analogue transmissions, requiring a receiver based beat oscillator, and (as far as I got before leaving the learning curve) digital radio communication - spectrum and ultra wide band - as there is no conventional carrier wave.
COFDM will also be a reduced or null carrier system for HDTV if it isnt already.
As to the original question - beats me, though I am under the suspicion that digital TV by its integration with the receiving box (and how it understands the protocol in the signal), is the beginning of regionalising content, what you are not supposed to have, you wont get, regardless of the array you have on the roof.
The government will happily sell to the highest bidder, so your box may be set up only to get content from one provider (not that it would ever happen in this day and age with monopolies commmissions and all that).
Think yourself lucky this country has a multitude of satellite companies all competing for the space that is up there.