here's an excellent series of 4 short 5 min videos on space.com on black holes. they are rather well hidden on their site and don't show up on searchs for black hole info though lots and lots of data does.
"the black hole that made you possible" is a series of 4 episodes. here is the link to the first episode. the others are presented on the same page.
the lectures have wonderful animations and space telescope shots, and are very up-to-date in terms of changing, quick moving dance between theory and observation on this subject.
