Ok - silly question..... I am going all out this year - changing the kids playroom downstairs into the Wii playroom. How far should the couch be away from the flatscreen on the wall for optimal usage. I also purchased a 42" lcd just for this system. Still debating on whether or not to mount on the wall or place on top of a tv stand. Not sure high high off the ground is too high for the system. Have kids 5 and 6.