they work fine for me and it is indeed a very nice feature. they are very usefull when LIVE coverage as sometimes they show something different than the regular CBC HD. the rest of the day they show either encore events or a text screen with the schedule of upcomming events to be broadcast. as any oter PPV event (this are free ) you need to have a phone line conected to the receiver , mine 9242. althought some times it works without thephone line. i have tried both just for fun. i guess i will communicate later when you connect the phone line.
PQ is indeed vey good for me , too bad unlike NBC , CBC has decided to braodcast the same on both feeds, East and West.