UPDATE 06/26/2012: I have been really enjoying the TV for about a year now and am still amazed at the picture quality. I did contact LG recently about any harmful emissions or radiation that might come from the screen (as I use it quite a bit for both TV viewing and as a PC monitor), wondering if I should buy protective eye gear (I had been using various lens but decided to ask them before I purchased another pair....I had 2 pair break). They wrote back the same day and said that there is virtually no radiation from the screen.
End of UPDATE.
The set up is fairly easy although I found the manual to be lacking in more detail, especially concerning a better explanation of some of the features.
The HD picture is just AWESOME and BEAUTIFUL. I thought the screen might be a little too big for my computer but I was totally wrong....it is just great! I do not have a HDMI connector for the PC, only the RGB, but it is still just outstanding. Hook-up was a matter of just connecting the plugs.
The sound is better than good, but not great. (BELOW you will see how I was able to improve it....QUITE A BIT!!)
I was going to give it 4 stars because the non-HD channels are just good, and acceptable; but, the more I look at it, I realize it is actually pretty good. So, it warrants 5 stars.
I have seen a number of HDTVs, especially in showrooms, and this one seems to be better than those. It truly has an amazing picture with HD and I am very pleased with the purchase.
UPDATE 07/09/2011: After tinkering with the set for a month or so, I have been able to improve the sound CONSIDERABLY.....and it was pretty good to start with. Here's how I did it: Press "Menu", then "Audio". Turn "Auto" sound OFF! Next, I have the "Clear Voice II" turned "On" and set to 0 (the more I increased it to the maximum of +6, the more background static I got). MOST IMPORTANTLY, I use the "MUSIC" mode..this produces a much more dynamic sound! Then adjust Treble and Bass to your liking and CLOSE. I get a really great sound. I use 56 treble and 89 bass.
This is a 10/29/2012 UPDATE: I had ordered the Bose SOLO one piece system which is a single unit dedicated to increasing TV sound quality. I followed their instructions to the tee and used the best connection they recommended, as well as turning off the TV speakers when testing the sound. Oops.....the LG had a nicer and more dynamic sound! I have since returned the Bose system (they were great about taking it back....even paid for UPS return postage). Actually, the SOLO unit has gotten some bad reviews on here, even though more good than bad.
UPDATE 10/31/2012: After messing with the "Video" for over a year I have finally gotten what I consider to be a better picture than the "Standard" or "Intelligent Sensor" modes. Basically, I use the first option of 16:9 Ratio....then skip using the "Picture Wizard" (it is quite involved but it might work for you)....and chose the "Vivid (User)" option for the viewing mode. You can see what you like under the various adjustments of "Sharpness", "Contrast" etc.. Under "Advance Control", I have all the options set on "High" except for "Black Level", which I have on "Low". Then "Close".