These aren't simply remapped channels though. I am a brand new HD customer, so I was upset that the normal HD network channels weren't showing certain programs in HD so I tried to watch them on the 400 level channels instead.
It didn't work, as the channel broke up constantly, but while the normal FOXHW (823) was showing "Kitchen Nightmares" in SD, it was in full (albeit broken up and unwatchable) HD on FOXHW 474.
So I'm not sure what's going on there, but it's upsetting that shows on the normal US networks that are originally in HD aren't passed on to us.
Kitchen Nightmares, and Survivor are two shows that are not shown in HD on BEV as far as I can tell. It is sort of annoying when I call up a friend on Shaw cable and he's watching these programs in HD with no trouble.