Summary: Checked this out at the Sony Store in Manhattan at 56th and Madison. It was showing the James Bond Skyfall trailer in 4k. The one thing that's really great about 4k is that you can sit much closer due to the resolution. An 80 inch TV is basically like four 40 inch tvs in a grid. So you can sit about the same distance you'd sit from a 40 inch TV, but get a grander, more theatrical experience.