A quick check with your satellite provider may be able to confirm whether or not it's the source. I know on my DirecTV certain channels definitely look better than others, and within that, look better or worse at different times of day (prime time usually higher quality). May want to check around to see if there's a different satellite provider with better signal quality.
Also, don't know how it is in Canada, but in California now you can pick up a $15 antenna, hook it through a HDTV receiver to your TV, and pick up all the local channels (NBC, ABC, CBS, etc.) in crystal clear HD.
Also, don't know how it is in Canada, but in California now you can pick up a $15 antenna, hook it through a HDTV receiver to your TV, and pick up all the local channels (NBC, ABC, CBS, etc.) in crystal clear HD.