Couch with Hidden Treadmill

The area under the cushion your sitting on, what's there?  If you are like the majority of Americans you have nothing between the springs of your couch and the floor just empty space.  Why not use this space by filling it with a treadmill.  The treadmill would be super compactable (leave it to Japanese engineers) and would swing out from under the couch and then the control console could be raised from it's folded position.  The beauty behind this is two fold.  First the beauty of efficient space, you take large household item and hide it in another.  And second is the TV.  Most people wouldn't dare put such an ugly thing as a treadmill in their living room where everyone can see it, but they do usually put the biggest TV in the house there.  This way you could have the huge TV while you run and then tuck the mill away when guest come.  No more crappy extra room TVs.