The bigger the TV, the larger the pixels are. If you stand too close to a very large TV, you will start to see all of the rectangular pixels rather than the video content. I don't know where that line between distance and TV size is, but my primary cab has a 27" JVC and it looks fine to me. If it were much bigger, I would want to be farther back since I wouldn't be able to get everything in my field of vision without moving my head around.