
"Wil, do you want more Diet Coke?
The Big Bang Theory Season 8, Episode 20

Diet Coke.
The Big Bang Theory Season 1, Episode 13

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

This thing has to hold up
against a hearty potato-based DIET.
The Big Bang Theory Season 2, Episode 22

I'm sorry, Galileo drank DIET Sprite.
The Big Bang Theory Season 4, Episode 9