Now I wouldn't for one minute suggest you paint your lounge ceiling black (unless you're a serious Goth!), but I've just painted my listening room in the cellar. Used matt black paint on the ceiling and grey on the walls, only problem was the ceiling had been covered in artex before and the black paint was an absolute bugger to get in all the crevices, took me 2 days to do a 14'x13' ceiling . Still, the end result is great. The ceiling now 'disappears' when the lights are out and doesn't reflect any light from my TV. All said, a good result, and I recommend blacking out your ceiling wherever it's domestically possible!