Sears offers the Zenith 50″ 600Hz 720p Plasma HD Television, model no. Z50PT320, for $494.99. Shipping adds $69.99, or opt for free in-store pickup. That’s $155 off and the lowest total price we could find. Sales tax is added where applicable. Features include a 1024×768 (720p) native resolution, 600Hz refresh rate, 2,000,000:1 contrast ratio, three HDMI inputs, and VGA, and other inputs.