For those trying to decipher them, here's the lyrics to the portion of Barenaked Ladies' theme "History of Everything" heard in the opening credits. You can also view the video for the full-length version of the song at http://www.youtube.com/watch?v=Aym8_S3BXKw&feature=related. I also just discovered the song's available at iTunes.
Our whole universe was in a hot dense state,
Then nearly fourteen billion years ago expansion started--Wait!
The Earth began to cool,
The autotrophs began to drool,
Neanderthals developed tools,
We built a wall (we built the pyramids),
Math, science, history,
Unraveling the mystery,
That all started with the Big Bang! BANG!