Summary: I'm not a huge AV person, but I think this TV rocks. I've had it for about a week and overall I've really enjoyed it. I left the 240hz refresh rate on and put the viewing mode on energy conservation I think the picture looks really good. This TV is a beast so if your planing on wall mounting it make sure you have 2-3 people to help lift it.
Excerpt: I've lived with my 80" 857U for about a month now, so here are a few Pro/Con items on upgrading from a 70" 732 to the 80" 857U. Pro It's 10 inches larger! It's 50% brighter -- excellent for a well lit room The edge lighting doesn't produce the diamond pattern on bright, solid color backgrounds The screen corners are not dark The bezel is very small. It feels like it's nothing but screen. It's a better looking TV from a furniture perspective.