Apple has aired a new TV commercial (seen below) featuring the Retina MacBook Pro announced yesterday. The machine, which has already been selling briskly online and in retail stores, has been seen as a hot seller despite the fact that it costs more than the non-Retina MacBook Pro models, which are also improved from the previous model. The commercial is a very straightforward product showcase, with the computer demonstrating its screen and turning to reveal it's thinness.