
No, it's okay,
he told me that story a long time AGO.
The Big Bang Theory Season 8, Episode 8

♪ Then nearly 14 billion years
AGO expansion started... Wait! ♪
The Big Bang Theory Season 5, Episode 7

♪ Then nearly 14 billion years
AGO expansion started... Wait! ♪
The Big Bang Theory Season 7, Episode 14

About a week AGO.
The Big Bang Theory Season 12, Episode 5

♪ Then nearly 14 billion years
AGO expansion started... Wait! ♪
The Big Bang Theory Season 5, Episode 20