For anyone looking for a solution to DVR Buzzr and you can't receive it OTA or by other easy means, Sling seems to be a best bet at the moment. I have used it for a week now with no issues, recording Classic and Regular Concentration, and some other shows. I'm going to make the most of their "free two weeks" offer, then subscribe to a package later this month, mainly to expand the DVR from the free 10 hour option to the bigger 50 hour option.
FWIW, I think the Sling interface is garbage compared to YouTube TV, but it works and it's great to have the DVR option for Buzzr.