I have a sling adapter connected to a 722. Any time I try to watch live TV through DishOnline or on my Iphone it doesn't exactly work. Instead of showing the TV show I selected to watch, it instead shows whatever was last viewed on TV2 of my 722. I can watch DVR recordings fine and I can watch the live show that is currently on TV2, I just can select a channel and watch that show. Make sense?