This thread is an interesting read.

I have the 37WLT68, and will have a play with my settings when I get home, but with M100 active and settings using the new testcard in HD, I do still get motion bluring.

Will I ever get rid of this? Sounds like I wont. I am well pleased with the picture though it has to be said.

I also stuggle to see a big difference when turning M100 on or off. Strange......