According to some leaked information yet to be officially announced DirecTV HD tuner for Vista Media Center was missing required pieces to make the HDPC-20 possible. It was also missing RC0 and native H.264 support which is vital to both DirecTV support and the latest Hauppauge HD PVR component capture device. Many have reported that the update will officially be called Windows Media Center TV Pack. Unfortunately it seems that the H.264 and DirecTV support have been pushed to Windows 7, which pretty much means waiting for it till 2010. even though the new update doesn’t have DirecTV support its not completely bad considering some of the added specs; 16x9 thumbnails and HD recording preferences, new favorite channels listings feature, foreign tuner support and teletext for the rest of the world. This and there also the native QAM support.

There is also said to be another new feature which is that you'll finally be able to assign an OTA channel to any channel number you want -- so channel 28 can finally be 28, instead of 1281. This is supposed to also help in resolving scheduling conflicts since you can have more than one source for each channel (aka OTA and cable).

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