New TOPIC, please.
The Big Bang Theory Season 2, Episode 19
Okay, new salon TOPIC.
The Big Bang Theory Season 8, Episode 18
Okay, the first question
is on the TOPIC of optics.
The Big Bang Theory Season 1, Episode 13
So, Alex,
what's the TOPIC of your dissertation?
The Big Bang Theory Season 6, Episode 3
Okay. New TOPIC, please.
The Big Bang Theory Season 2, Episode 19