So, Alex,
what's the TOPIC of your dissertation?
The Big Bang Theory Season 6, Episode 3
And on a different
but not unrelated TOPIC...
The Big Bang Theory Season 3, Episode 1
- New TOPIC.
- Mm.
The Big Bang Theory Season 2, Episode 9
Oh, yeah. Those guys can be
very stubborn. What's the TOPIC?
The Big Bang Theory Season 2, Episode 20
I would like to propose a salon TOPIC.
The Big Bang Theory Season 8, Episode 18