I've been using the VOD beta on my hr21 with Comcast for a few months now. I haven't had any issues with Comcast saying I'm hogging bandwidth, but the speeds have drastically decreased as of late. I can download any program on the on demand though in a fairly reasonable amount of time (10-15 min) and it really isn't difficult to do at all. I think when the service officially launches it will be a great one. I'm enjoying the beta immensely.