DirecTV “announced” its plans to support Media Center at CES in January 2006. It was pure vaporware. And DirecTV never announced the HDPC-20. The result would be the ability, in theory, to capture all of DirecTV’s satellite programming, including HD, and then view and manage it with the Media Center interface. A third party leaked scans of a product brochure, and some folks on the Fiji beta got paperwork that mentioned that name.
In January 2008, a product brochure appeared, and some people got invitations to test the new HDPC-20, and now in the pre-beta build 6801 of Windows 7 distributed at PDC a “signed driver for this device” is found.