I picked up this Samsung at Wally World last Saturday for the bedroom it's not 120 Hz but I've been happily surprised while watching the Olympics this week it handles motion well I also watched a hd broadcast of last years Tenn. vs Alabama football game.
I also played some Assasins Creed Revolutions and was happy there also. The sound isn't bad either, I have a Samsung soundbar and don't feel the need to use.
My primary tv is a Samsung UN55D8000 and while this TV is not near that quality as I said I've been pleasantly surprised for $448
Samsung 40" Class LCD 1080p 60Hz HDTV, LN40E550