
It's just a THEORY.
It's not even worked out.
The Big Bang Theory Season 10, Episode 15

Previously on
The Big Bang Theory...
The Big Bang Theory Season 11, Episode 11

Anyway, I was thinking about exploring
the string THEORY implications...
The Big Bang Theory Season 3, Episode 4

No offense, but I'm not
gonna stick around
to test that THEORY.
Westworld Season 2, Episode 4

...the fingerprints of string THEORY
in the aftermath of the big bang.
The Big Bang Theory Season 1, Episode 1