
I planned on giving it to myself
on my 300th BIRTHDAY.
The Big Bang Theory Season 4, Episode 2

- You don't know everything about me.
- Your BIRTHDAY is December second.
The Big Bang Theory Season 9, Episode 9

Rajesh. What a nice surprise,
calling me on my BIRTHDAY.
The Big Bang Theory Season 12, Episode 2

I'm gonna go celebrate
Halley's first BIRTHDAY.
The Big Bang Theory Season 11, Episode 11

Happy BIRTHDAY to you
The Big Bang Theory Season 9, Episode 17