Its not really SQL Server, but this short 16min video comes from the guy who ultimately takes resposibility for SQL.  Bill is asked a number of interesting questions that put his contimued relationship with Microsoft under the spotlight  - like why does he bother working?  If you haven't seen Bill speak much - this is a very good cameo.

http://channel9.msdn.com/Showpost.aspx?postid=111598

PS its also a good intro to Channel9