
Try telling him
it's a non-optional social CONVENTION.
The Big Bang Theory Season 1, Episode 16

Did you tell them that
you're holding your CONVENTION
The Big Bang Theory Season 7, Episode 14

like Sheldon and start their
own comic book CONVENTION?
The Big Bang Theory Season 7, Episode 14

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

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