It will output HD in your house, just like the upcomng SlingHD will be able to do.How high will the resolution be on the sling output? Are they viewing the RF output as standard def but will be able to sling HD out to a second TV?
The 722s is still awhile away. I wouldn't expect it until early next year. (even though I am hearing that they are pushing to get it out sooner then that)