So it would seem that the Windows Media Center TV Pack is indeed Fiji, at least according to a report from Engadget HD. 

Engadget HD is also reporting that the long awaited DIRECTV support in Fiji might not ship.  Sadly, I can’t really comment on anything because of various NDAs, but it wouldn’t be an understatement to say such a non-release would be devastating to the market.

Fiji needs to be a huge release for Media Center as the next foreseeable release will be Windows 7.  Without a good release that includes features like DIRECTV support, Microsoft would be opening to door for others (eg. Apple) to catch up and corner parts of the market.  Microsoft had the clear advantage the past few years in that the market was still developing and they got in early (2002).  However with new products shipping daily Microsoft no longer has any time to wait.