
- Uh-oh, he's stuck in an infinite LOOP.
- I can fix it.
The Big Bang Theory Season 2, Episode 13

Loop quantum gravity
is the future of physics.
The Big Bang Theory Season 2, Episode 2

It's straight, it's in a LOOP,
The Big Bang Theory Season 11, Episode 13

What about LOOP quantum gravity?
The Big Bang Theory Season 7, Episode 20

You're doing work
in quantum LOOP corrections.
The Big Bang Theory Season 1, Episode 12