Costco offers its members the Philips 50" 1080p LED-Backlit Widescreen LCD HD Television, model no. 50PFL3807/F7, for $679.99 with free shipping. (Non-members pay $34 more.) That's the lowest total price we could find by $40 and the best price we've seen for a wifi-enabled 50" HDTV. Sales tax is added where applicable. Features include a 1920x1080 (1080p) native resolution, 4,000:1 contrast ratio, 350 cd/m² brightness, 8ms response time, 802.11n wireless, Net TV with Netflix, VUDU, Film Fresh, and more, three HDMI inputs, and VGA and other video inputs.