
So, your CONVENTION
is in San Diego, right?Yes.
The Big Bang Theory Season 12, Episode 17

No, it's the accepted CONVENTION.
The Big Bang Theory Season 2, Episode 21

Let's see, the magic store,
the Doctor Who CONVENTION,
The Big Bang Theory Season 10, Episode 19

- Really?
- Yeah. I was at a science-fiction CONVENTION...
The Big Bang Theory Season 8, Episode 20

and possibly the
Geneva Convention.
The Big Bang Theory Season 11, Episode 12