Last year's TV buzz was 1080p. This year's is all about 120 Hz. That refers to the number of images a set displays each second to make your picture move; 120 is twice the norm, netting the smoothest pans since Teflon. Samsung LN52A750 $3,700, samsung.com This 52-inch Samsung chewed up stuttering 60-Hz video and spit out glass-smooth motion, leaving few visual artifacts. It sailed through most of our processing challenges, proving especially effective at recombining interlaced video. The set also delivered vibrant color — if a bit more saturated, ... (more)