SAMSUNG CMR LED MOTION PLUS is very effective against the "natural" lcd blur, recommend to set it ON and increase BRIGHTNESS and BACKLIGHT to compensate the dim.
LED MP is the CMR tech, that use backlight scanning / led strobing in sync with the lcd sample and hold processing, to reduce blur.
LG refers as TruMotion, SONY as Motionflow etc.
Use these test video's to see the effects yourself, with LED MP ON, details will be visible when blur is reduced!
Sample on youtube:http://www.youtube.com/watch?v=e0Gre5rgdD4
Note: youtube can't display 60fps hence the video 60fps right side won't show difference, you'll need to download the video and play on tv.
Download 30fps vs 60fps video test:
In addition: Frame-doubling test, you will see on 30fps side double images of moving objects, caused by display outputs at 60Hz, thus each frame is displayed twice.
PS: try compare it with a Plasma tv, you'll see the superb plasma motionhandling vs LCD/LED sample and hold, blur processing.
For DIY PQ improvement, see these threads: