I have seen a few dual tuner receivers out and was not sure what the point of having dual tuners is on one tv. I can see maybe you can record more but if there is only one TV most people watch one channel at a time. Is it for split screen mode? I used to have a Dish Network Sub with a 722 receiver and it was setup to have a loop out to another room and it had a separate remote for it. Is it a similar idea with these dual tuner models?