Just got off the phone with my cable provider (rogers). For anay canadian fans that care, I'll tell you what they said. As you know, the semi-socialist nanny state of Canada regulates the air -- and more importantly the broadcast signals that travel through that air. So basically HD sunday ticket hasn't been approved by the CRTC (for my US freinds following this, the CRTC is a government-arm that regulates, metres, and must rubber stamp every single radio, cable, or satellite station offered in Canada -- think Soviet Russia or China).
The operator doesn't really understand why since the regular Sunday Ticket has been approved for the past few years. Says that Rogers likely has a petition before the CTRC, but with anything that involves a large, bloated bureaucracy (my words) it's tough to say when, or if, we could get it.
Man, I miss my "grey' market DTV dish.