♪ Then nearly 14 BILLION years
ago expansion started... Wait! ♪
The Big Bang Theory Season 12, Episode 14
♪ Then nearly 14 BILLION years
ago expansion started... Wait! ♪
The Big Bang Theory Season 5, Episode 21
♪ Then nearly 14 BILLION years
ago expansion started... Wait! ♪
The Big Bang Theory Season 12, Episode 23
♪ Then nearly 14 BILLION years
ago expansion started... Wait! ♪
The Big Bang Theory Season 7, Episode 19
♪ Then nearly 14 BILLION years
ago expansion started... Wait! ♪
The Big Bang Theory Season 12, Episode 3