[via The New York Times]
1080p Does Matter – Here’s When (Screen Size vs. Viewing Distance vs. Resolution)
This is a nice, simple, explanation of how the interaction of screen resolution, screen size and viewing distance all come together around the perceived quality of the TV image. The practical upshot is that maybe you don’t need the full 1080p unless you want to move your chair up to a couple feet from your TV (which just happens to be how you’ll see the set in the showroom).