27" SD TV. I honestly can't see how people can stand anything larger. Maybe up to 30". As it is, I can clearly see everything I need to see, and it's fun. My mom has a 60" plasma flat screen, and when I visit my brother and I play some games on it, and quite frankly it's annoying, the screen is stretched out enough that it becomes a chore seeing what's going on around you. When playing a shooter on a 27" it takes a very slight eye movement to examine all corners of the screen, on a 60" it takes slightly longer to examine the entire screen and see where the shots are coming from. Movies look good on it, but for gaming I'd prefer a smaller screen.