Ok, I'll try to summarize for all, LOL
Thanks for the map, first time I had seen this. Edmonton is inside the red area so therefore is in need of the 1.2m AK/HI dish. Yes, you will get all the HD with this but signal reports on 99 and 103 are in the sixties and seventies, not high 80's. Not sure how easy it is to tweak that huge dish.
I use the Slimline so get partial HD. Signal in the 30's on KA gives you the picture. Signals in mid 20's give you pixilation on the HD channels.It depends on weather and exactly how far north you come.
Calgary (51N latitude) gets all HD with the Slimline I am told.
I live with the Slimline because of the price and potential shipping to get that big dish and parts. Short of bringing one back from Hawaii, I am hoping someone from Alaska has room on their truck if they plan on visiting the lower 48 and is driving back through Alberta.