Premier Mounts just debuted the AM500, another in the Mega Mount family (which are capable of supporting displays up to 500 pounds). This mount is an articulating wall mount for extra large displays ranging from 65″ to 103” and above with a weight capacity of up to 500 pounds (226.8 kg). It offers full forward extension of over 15″ (381 mm) from the wall to access displays for service and alignment, plus keeps cables and electrical components organized behind the mount itself.

The AM500 provides a full range of motion, including a full left to right pivot movement thanks to its double, articulating elliptical-tube arms. It also features both a positive and negative tilt adjustment and allows for displays to be rotated and positioned in landscape, portrait or any other arbitrary angled orientation with a 360° rotating mounting head.

Go here for full specs: http://www.mounts.com/product?product=AM500