I have a 47" LG 47SL90 I bought 2 years ago and love it. I found the instructions and controls easy to use and the picture is great, even on SD channels. I see a whole lot of folks over in the Samsung forum complaining about this and that, but I've never had the first complaint about my LG. It's a side lit LED.
Some of the folks over in the Samsung forum are going on and on about their timer not working, but the one on my LG works just fine. I know because one of my kids set it to come on at 1:00 AM, didn't tell us, and it woke us up to the sound of loudly barking dogs until we found out what was happening. Our two dogs sleep in the den where this TV is.
Highly recommend this tv.