Rockin' a cappella group Novis mixed together a fantastic medley of various science fiction tunes and theme songs. There's something for every nerd in this music mix.
Here's the list of songs:
2001: A Space Odyssey
Doctor Who Theme
Ballad of Serenity (Firefly)
Battlestar Galactica (Main Theme)
I Am The Doctor
Thanks for the tip, a_blackpanther.