If you’re enjoying the Cosmos series, you might enjoy these lectures by Neil deGrasse Tyson, which I discovered yesterday is now on Netflix. The lectures are fairly far ranging covering things like string theory, dark matter, dark energy, gravitational anomalies, and many other things.
If you’re well read in science, a lot of this might be basic stuff, but Tyson has a way of describing things that keeps it novel and fresh. Unlike Cosmos, this is mostly just Tyson sitting in a room talking, with an occasional visual aid interjected. I enjoyed them enough that I watched the whole thing straight through last night.