I have Max Hd with PVR and it had improved quite well, no more freezing or pixels. It's best to use component to the hd pvr box called moto vip1216. If you have sd only, you have to phone Sasktel and they'll upgrade you to their hd pvr service for free, like free install, and you get two months of hd programming for 59 dollars a month, sweet deal.
it's broadcasts in 1080i, i think. no hdmi but you could ask Sasktel tech support.
Let me know how it turns out with the uipgrade.