Pros Size, picture quality, especially 3D!!
Cons None, great TV.
Summary Great TV, if you can pull it off, get it. Costs a bit more, but you get what you pay for. Best 3D I've ever seen. I originally purchased a Samsung 51 inch 550 series and it didn't did not impress. I took it back to the store to for refund. The sales guy took me over to see the HX820. Wife was opposed to 3D, says it hurt her eyes, however, she thought this TV was great!! No problems at all. Really rivals my 2008 XBR for picture quality.
Pros WiFi capable, 3D ready, on-board online video services, outstanding picture quality, gorilla glass, adequate number of I/O ports, edge-lit design, onboard help
Cons No 3D glasses included, Skype services require a videocam/mic combo purchase from Sony
Summary I'm afraid I have spoiled myself with this purchase - this is my very first flat panel TV. I wanted something high quality, and this TV doesn't disappoint. I easily mounted this TV onto its pedestal by myself, but it's heavy - I recommend that 2 people do this or mount it on a wall. Connection to the internet was flawless, was able to connect to my online video services easily. I've shopped around for a few months, but one look at the pic quality on this beauty sold me.
Only problem is, the next flat panel I buy will have to be as good or better...but I can live with that problem.
Pros Slim clean TV design. Looks like a piece of carved polished black marble when off. Absolutely stunning! Easy an quick set-up. Great out of the box content and features to tinker with.
Cons None to report.
Summary Reading the description of this TV doesn't do it justice. It's a must see, or must purchase. I had both the XBR-HX929 and this HX820 side by side and both are spectacular. Little or no difference with performance and viewing experience with simultaneous 2D and 3D programing. I also compared this TV with other competitors with similar performance specs and found that this TV out performed many of the higher refresh rates of other 3D LED and plasma TV's. The Combination of the motionflow technology and the X-Reality PRO Engine is the key factor in its seemingly accelerated performance. The TV turns on quickly, responsive quick program changes and input changes. The "in TV" manual is extremely helpful. The built in motion and viewer sensing camera which automatically adjusts TV settings for optimal audio and visual experience makes this TV a must have. It's a must have. If the XBR is a little too pricy but you still want that same top of the line performance and all the same operating options, this hx820 is your solution. (for a Sony comparison chart look here: http://www.paulandtonys.com/pts/images/stories/pts_HDTV/SonyHDTV_Chart.jpg) There's more, and you'll find yourself tinkering with all the neat little features it has right out of the box. I've run out of typing space so I hope my summary has helped. I've enjoyed the Sony experience.