Long story short: DirecTV is bitch slapping Microsoft for not integrating Satellite TV into the Media Center TV Pack 2008 release. Since it was not integrated, the feature would have to wait until Windows 7. As much as MS is shooting for next year, DirecTV knows better.
It is still very depressing that DirecTV isn't going to stick it out. VMC won my heart when it could integrate many different sources into one UI creating a true 'set-top box experience' through a PC. Integrating Satellite TV would be one more way to corner the market and provide something NOONE else can.
http://www.gearlog.com/2008/12/its_official_the_directv_hdpc2.php from http://thedigitallifestyle.com/cs/blogs/ian/archive/2008/12/09/no-directv-for-media-center.aspx