Summary: This is a fantastic TV. I used it to replace a 144" projection system and it has done a good job. No matter how good the replacement is - when you reduce the screen size by more than half, you will be disappointed for a while. I am very happy that I made the transition from projection to LED technology because there is no comparison on presentation quality.
Summary: This rating is primarily about the picture, since a screen this large is likely to be used in a home theater, with a separate sound system. The built in, small, down-firing speakers are OK for watching the evening news, but they don't come close to matching the picture. Note that I adjusted Film/advanced from 7 -> 0, as many reviews have suggested, to get rid of the "soap opera" effect.
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.
Summary: Just wanted to pop in and add a note about shipping. Elsewhere on these product reviews and other Amazon forums, customers have complained about the shipping of such a large TV, and how it was unreliable, showed up days late, lack of communication, etc. I had the exact opposite experience, and because I was anxious about purchasing an item of this cost and size from Amazon, I felt I should add a positive review for others that are contemplating the purchase.
Summary: amazon's customer service was outstanding - it was personal and considerate in how they maintained contact regarding our order. Upgrading from a 10-year old 65-inch projection tv, and even having researched what we decided upon for our replacement tv, we were still unprepared for and amazed by the awesomeness of this TV! The picture, the clarity, the color, the means to fine tune specs on so many levels to get an ideal viewing, are all just spectacular! ..
Summary: I have been enjoying this TV for about 6 months. Today it would not power on. I called Sharp for help, their customer service representative gently asked me call back tomorrow because their computer system is down.