Well, plagiarism is a pretty
SERIOUS charge. Are you sure?
The Big Bang Theory Season 12, Episode 21
You know, if you're really
SERIOUS about that,
The Big Bang Theory Season 7, Episode 24
You can't be SERIOUS.
Breaking Bad Season 5, Episode 12
The girlfriend's buying clothes for you, huh?
Sounds SERIOUS.
The Big Bang Theory Season 2, Episode 10
Come on, be SERIOUS.
The Big Bang Theory Season 7, Episode 23