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
Stargate SG-1
Ballad of Serenity (Firefly)
Battlestar Galactica (Main Theme)
Fringe Theme
I Am The Doctor

Thanks for the tip, a_blackpanther.