
No. Something
about a CONVENTION.
The Big Bang Theory Season 7, Episode 14

...the cultural CONVENTION
is to bring them hot beverages.
The Big Bang Theory Season 1, Episode 6

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

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

I know you're not ready and I don't want you to
say it just because social CONVENTION dictates...
The Big Bang Theory Season 8, Episode 8