♪ Then nearly 14 billion years
ago EXPANSION started... Wait! ♪
The Big Bang Theory Season 5, Episode 2
If we complete it,
you get a free EXPANSION pack.
The Big Bang Theory Season 2, Episode 3
♪ Expansion started... Wait!
The Big Bang Theory Season 12, Episode 24
♪ Then nearly 14 billion years
ago EXPANSION started... Wait! ♪
The Big Bang Theory Season 12, Episode 5
♪ Then nearly 14 billion years
ago EXPANSION started... Wait! ♪
The Big Bang Theory Season 7, Episode 6