
at Comic Con.
The Big Bang Theory Season 5, Episode 7

But you have the CON.
The Big Bang Theory Season 2, Episode 5

C-O-N...
The Big Bang Theory Season 1, Episode 6

A very long CON indeed.
The Big Bang Theory Season 12, Episode 7

- And finally, area rugs, pro or CON?
- Pro?
The Big Bang Theory Season 2, Episode 19