BestBuy.com has the Samsung LN55B640 55" LCD HDTV for $1,800 after $1,000 instant discount, which is 36% off the $2,800 regular price. Shipping is free. The Samsung LN55B640 55" LCD HDTV features 1920 x 1080 (1080p) full HD resolution, 16:9 widescreen aspect ratio, 80000:1 dynamic contrast ratio, two 15-watt speakers and four HDMI inputs (including [...]