DirecTV

the most advanced home theater receiver with HD and DVR in one unit, has a larger capacity hard drive, better cooling and is rack mountable. The DirecTV Pro HD DVR also features Media Share, allowing you to enjoy photos and music stored on your Intel Viiv processor technology-based PC on your TV. HR24 is the latest (May 2010). Guide scrolling and channel surfing is much faster than previous models.(wikipedia.org)