Just wanted to update this thread concerning the glare issue.
We moved into a new home recently (literally new, had it built) and have an off-white ("Devine White", builder default), flat paint in the living room. The rental home we were using had white painted walls, and probably semi-gloss; I don't really recall. The TV is on the only wall with windows, so there are no windows opposite the TV to cause glare. We have zero glare now, and all we have are 2" wood blinds, no curtains. So, my conclusion is that the color and type of paint on your walls and window placement will make a dramatic difference in how much glare you get on your screen.