Reading this thread makes me slightly worried that my newly-purchased Epson TW7200 with white 108" 1.0 gain Projecta screen (both still in their boxes) will be wasted in the basement of my (also newly-purchased) house.
The room will also be used for other things than HT so painting everything completely black isn't an option. However, the wall-to-wall carpet is black and all the walls are a medium grey. Ceiling is white, though (and I have complete light control).
As I said, the room just isn't going to be transformed into a batcave, but padding the first meter or so with black satin/similar fabric is definitely doable, if it will have an effect.
Considering that the room is 4.5x6.8 meters and the screen is mounted on the shorter wall, do you think adding black fabric on the first meter of wall and ceiling will help reduce reflected light to any significant degree?