I wish I have found this thread earlier. I had the LG47LM8600 for three weeks (bought it from Amazon) and I loved it. Picture quality is great BUT with some big flaws:
1) TV relies on edge lit LED technology to light up the LCD panel and uses local dimming to achieve better blacks. This makes group of LEDs to turn on/off independently but it causes to display a band of light (halo effect) on the screen that really shows up on dark scenes. It can be seen when switching between TV inputs, the screen goes black and only the LG logo and the pink cursor from the magic remote shows up and BANG!! here you can see how a band of light follows the cursor wherever it moves. So I said no big deal, but then one night with all lights off and watching a movie (Safe House) suddenly the screen goes black and only the face of the actor shows and BANG!! the band of light is now really really apparent.
TV during the day when room is brighter you might not even notice it but at night when lights are off, you can really notice is and it is not appealing.
2)TrueMotion: I really did not like this feature at all, it comes with multiple set ups (Clear, ClearPlus, Low, Medium, etc). But you always get the "soup opera" effect. I think despite being 240Hz it does not handle very well fast action scenes. I ended up having this option off, even when watching sports.
-3D is by far the best I have seen. And I prefer the passive technology, LG uses, than the 3D active technology.
-Media connect is great you can easily connect to other devices such PC and stream movies (MP4, MKV, AVI, etc) directly from there. I also liked it recognized AC3 or ACC encoding to take advantage of 5.1Dolby.
-Good looking, prefer it looks over a samsung.
-Having a dual core processor and a fast ISP made streaming enjoyable. LG app market has Redbull TV and I watched it all the time like if it was pure HD
Despite loving this TV I could not live with the band of light so I had to return it. I have found some people saying they found the LM7600 not having these issues, so I might get one or the Samsung UN55ES6500. Any thoughts?