Okay so we don't have home internet at our house. Yesterday I rented the movie US on demand (because Dish said it was possible w/o internet). I texted the request to Dish before we went to the store and when we got back I was able to select channel 501 VOD and watch the movie instantly. How does this work? Why do network on demand channels require internet connection, but renting doesn't? Would this have worked just as well if I had tried to watch it right away?