The new slickly produced 5 part series out of NASA is Top Notch. An impressive script alongside stunning visuals (both NASA animations and space craft photographs/videos) They delve into topics unknown by most, and explain them in a way that can be understood by astronomy fans slightly above layman.
This is Robert Sapolsky's lecture on Biology in Religion, in 6 parts
My original music. Find my album Astronasty, Available on iTunes, Amazon mp3, and all other online mp3 download venues. For Astronasty on Amazon go here: http://goo.gl/16NSu