Bazinga!

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!

Can you guess which TV show I've been watching this summer? Just started Season 4.