A few questions

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.
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.
 
As far as I know he has no interest in the actual Blockbuster aspect of it but just wants the HD channels in that pack.
 

Unable to change programming online

Sling Adapter and Lock Codes - Tips Tricks Appreciated