
Wrong. She just took a sip
from his Diet Dr. Pepper.
The Big Bang Theory Season 6, Episode 2

- Is it DIET?
- That's what you ordered.
The Big Bang Theory Season 4, Episode 23

changed her DIET,
and in a few months, she...
The Big Bang Theory Season 7, Episode 16

Playing Halo? Watching Battlestar?
Drop some Mentos in Diet Coke?
The Big Bang Theory Season 2, Episode 19

Why are you on a DIET?
The Big Bang Theory Season 7, Episode 2