Bill Gates - A short chat with Microsoft's Chief Software Architect
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.
https://channel9.msdn.com/Showpost.aspx?postid=111598
PS its also a good intro to Channel9