I think most of them are digital. I know Global Calgary is, but they downconvert to analog because nobody has OTA digital tuners. (Except geeks like me, but I don't use it.)
But I think the point in the States is to get stations to say "well, we may as well go HD if we are going to have to convert anyways." And then consumers will say "I may as well buy an HD TV if I have to get a digital one anyways......"
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