HD on demand doesn't work for me but my speed is much slower than yours. It's no problem for Netflix to stream in HD. Shaw Direct HD on demand is too sensitive to speed fluctuations (not enough buffering? slow servers?)
A&E Documentary you know the true crime stuff A&E's been doing for ages when those dirty duck people aren't on.
I get my internet from Eastlink between 7 & 10 my speed drops to 14 mbps and I can't get on demand to work at all the rest of the day I'm at 21 mbps and I can stream SD without issue, HD is a no go I guess unless I pay Eastlink for a higher speed and I don't watch enough on demand to pay for faster internet.