Note: I can't answer or comment on any of them until the official announcements happen at CEDIA. But I can think about the answers before then. If you have specific questions about the Windows Media Center TV Pack leave them in the comments.
Update: Ben Reed answers some of your questions over at http://thegreenbutton.com/forums/thread/282555.aspx.
Disclaimer The opinions expressed herein are my own personal opinions and do not represent my employer's view in any way.