I have the 510, and I'm hoping to jump on this 811 deal. I currently have cable to receive the locals (and for cable internet reasons). Is it possible to hook up the 811, use my existing cable, and then integrate an OTA antenna to receive the local HD broadcasts all on the 811? Boy is my head spinning. What do I do with the 510 now. I guess I should first check to see if I qualify for the 199 deal, as I had the 811 installed by Dish.