Ideally, you’d sit about seven to 10 feet away from an 85-inch TV. You want your eyes to hit the vertical center line of the display, which will fill enough of your peripheral vision without making you turn your head or lose track of objects at the far edges of the picture. That said, some people like the feeling of a really huge TV. You can sit as close as five feet if you're one of those people. Any closer than that, though, and it might start to feel really uncomfortable.