C-O-N...
The Big Bang Theory Season 1, Episode 6
at Comic Con.
The Big Bang Theory Season 5, Episode 7
But you have the CON.
The Big Bang Theory Season 2, Episode 5
If this was some sort
of long CON
The Big Bang Theory Season 12, Episode 7
Well, you know,
it's Comic Con.
The Big Bang Theory Season 5, Episode 7