Samsung UN55D8000 has high CMR rating. For your information, Clear Motion Rate (CMR) is Samsung's comprehensive and accurate measure for how well an LCD or LED TV can display fast-moving images. Previously, motion clarity was expressed simply by the refresh rate, measured in Hz.
CMR, however, takes into account all three factors that contribute to motion clarity: panel refresh rate, image processor speed and backlight technology. CMR is measured by determining the thinnest line a TV can display in a moving image. The thinner the line, the higher the CMR rating, and the clearer the picture you'll enjoy on the screen.