
Oh, yeah. Those guys can be
very stubborn. What's the TOPIC?
The Big Bang Theory Season 2, Episode 20

I don't believe it matters what the TOPIC is.
The Big Bang Theory Season 8, Episode 18

Oh, my, that's an uncomfortable TOPIC.
The Big Bang Theory Season 6, Episode 23

Not that my disinclination
to discuss the TOPIC...
The Big Bang Theory Season 4, Episode 7

Have you noticed Howard can take any TOPIC
and use it to remind you he went to space?
The Big Bang Theory Season 6, Episode 5