
- Where's your NOTEBOOK?
- Um, I don't have one.
The Big Bang Theory Season 3, Episode 10

Like all my underwear, that NOTEBOOK says,
"Property of Sheldon Cooper."
The Big Bang Theory Season 10, Episode 19

The NOTEBOOK isn't in the bathroom.
The Big Bang Theory Season 10, Episode 20

It's a blank NOTEBOOK.
The Big Bang Theory Season 10, Episode 18

How are you gonna take notes
without a NOTEBOOK?
The Big Bang Theory Season 3, Episode 10