
♪ Then nearly 14 billion years
ago EXPANSION started... Wait! ♪
The Big Bang Theory Season 7, Episode 24

If we complete it,
you get a free EXPANSION pack.
The Big Bang Theory Season 2, Episode 3

♪ Then nearly 14 billion years
ago EXPANSION started... Wait! ♪
The Big Bang Theory Season 7, Episode 19

of the EXPANSION of the early
universe on the nursery wall
The Big Bang Theory Season 5, Episode 6

# Then nearly 14 billion years
ago EXPANSION started... Wait! #
The Big Bang Theory Season 11, Episode 15