Too funny!! Two things that no one answered. Does having a wall directly to the rear of the listening position have any negative affects? Acoustically that is. Also, why was the Smithsonian narrative crystal clear, ever so easy hear and understand as well as the Black Hole? But when I watch a contemporary movie or HD TV broadcast, I get the surgy,inaudible voices? I know the affects of the room, Im just wondering if it has anything to do with the actual source material.