Well, ever since I was a kid,
but, uh, I didn't really get SERIOUS...
The Big Bang Theory Season 8, Episode 7
- Are you SERIOUS?
- Uh-huh.
The Big Bang Theory Season 3, Episode 1
And to prove how SERIOUS I am about us,
The Big Bang Theory Season 10, Episode 5
Come on! This is SERIOUS.
Uh, uh,
The Big Bang Theory Season 7, Episode 19
I'm SERIOUS.
The Big Bang Theory Season 12, Episode 23