Hmm . . . that generated lots of questions! Yup, it's nighttime only. The wall of glass is not tinted - just looks out over green, green tress and a blue, blue lake. So just as Sushi said, no TV needed during the day! I don't know a thing about the hookup (blissful wife!) but yes, the two centers are both processing center channels, and the current experiment with the surrounds is four surrounds and a center rear vs 2 surrounds and 2 rears - I'll keep you posted! The screen is indeed 119" diagonal - it lowers another two or three feet for optimal movie viewing if you're in a barcalounger . . .