Hi shaned,
Though I no longer reside in Canada, I don't think there is any terrestrial HD over-the-air transmission anywhere in Canada yet. No surprise there. The CBC-TV network was one of the very last to switch to MTS stereo sound with analog TV, although they were way ahead of the US with digital radio. Unfortunately, they decided to go with the European Musicam system, whose frequencies conflicted with Pentagon military frequencies, so that digital radio service was dead in the water (to mix metaphors) before it got any momentum.
If you do have access to a digital cable service that offers HD content, one other advantage of an HDTV with a built-in tuner is that you won't have to rent a digital HD cable box from the cable provider like I do. (My HD is HD-Ready).
The HD sets with a built-in tuner will accept a cable card for which there is monthly fee (like $2 or something) plus the cable services you want, but it should cost less over time. Also there is less hassle hooking it up.
Regards,
