Just picked up my SlingTV 500 and everything pretty much works as expected. The remote for the set-top Amino A140 was able to be selected. However, the "down" button doesn't seem to work. The model is: http://www.aminocom.com/products/aminet-a140/
The lack of the down button functioning makes navigating on-screen menus extremely difficult. You can page-down, you can up-arrow, left-arrow, right-arrow, but down-arrow drops out of any on-screen menu you're in stead of moving the selection down.