TigerDirect offers the factory-refurbished Samsung 51" 600Hz 1080p 3D Widescreen Plasma HD Television, model no. PN51D550C1F, for the in-cart price of $699.99. Coupon code "SSJ61810" cuts it to $649.99. With free shipping, that's $150 under our April mention of a new one and $250 below the lowest total price we could find for a new unit today. It features a native resolution of 1920x1080 (1080p), 600Hz subfield drive, 0.001ms response time, two USB 2.0 ports, four HDMI inputs, and VGA and other video inputs. A 90-day Samsung warranty applies. Deal ends June 1.