
I'm starting my own CONVENTION.
The Big Bang Theory Season 7, Episode 14

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

from securing a huge guest
for my CONVENTION.
The Big Bang Theory Season 7, Episode 14

So, you'll go to the Doctor Who CONVENTION
with me next week?
The Big Bang Theory Season 9, Episode 12

I'm not aware of any social CONVENTION
that requires you to intervene at all.
The Big Bang Theory Season 1, Episode 17