Walmart offers the Samsung 58" 1080p WiFi LED-Backlit LCD Smart HD Television, model no. UN58J5190AFXZA, for $498 with free shipping. That's $52 under our January mention and the lowest total price we've seen. (It's also the best deal now by $150, outside of the price below.) Features include a native resolution of 1920x1080 (1080p), WiFi SmartTV Internet applications (including Netflix and YouTube), USB, and two HDMI inputs.
Don't mind picking it up? With stock varying by ZIP code, Sears charges $497.99 via in-store pickup.