I bought the LG 47LK520 four days ago and so far so good. I read reviews on the internet before purchasing the tv and the reviews were very positive. Iím not disappointed at all with the tv. Great picture quality and easy to setup and use. Plugged in the PS3 using HDMI cable and watched Avatar in BlurayÖ.WOW!
The sound is not great but can be fixed with a home theater system.
One thing I noticed when I turned the tv on for the first time, was that the whites were kinda grey. This is due to the Energy Saving feature. I turned it off and now the image is perfect.
I also own an older Sony (7-8 years old) and itís still working like a champ. The sound on this thing is amazing and the picture quality is also great.