Is there a device I can purchase to aggregate multiple TV channels and display them on one large screen? Sort of like how the DirecTV NFL package does with displaying like 6 games all on one display at once if you go to their certain channel. I'm thinking I will need a cable box with multiple tuners like one of those new Hopper systems to collect the various channels but then does the TV or display device (projector maybe) have to have Picture-in-Picture too? Not sure if what I want to do is possible but just wondering and if so how to set it up and what the cost would be.