Walmart offers the refurbished Samsung 55" 120Hz 1080p WiFi LED-Backlit LCD HD Smart Television, model no. UN55H6300AFXZA, for $579.99 with free shipping. That's $120 off list and the lowest total price we could find. It features a 1920x1080 (1080p) native resolution, 120Hz refresh rate, WiFi, Smart Hub, USB, and four HDMI ports.
Note, no warranty information is provided.