Right. It is not available on the 211. Nor is it currently available on the 922. Another reason he'll be happier with the 722K.Cheaper, can do Sling with $30 Sling Adapter, but has less eye-popping GUI than a 922 or the Hopper.
You also mentioned BMP? Is that for "Blockbuster Movie Pass"? If so, it's now called Blockbuster@home, and unless I'm sorely mistaken is NOT AVAILABLE ON A 211. 2TB disks are fine for all.