So that's all I was to you,
a-a test SUBJECT?
The Big Bang Theory Season 12, Episode 17
Oh, hey, on a related SUBJECT...
The Big Bang Theory Season 3, Episode 6
until the SUBJECT is asleep,
The Big Bang Theory Season 5, Episode 1
No, you're displaying a shocking ignorance
of the SUBJECT matter.
The Big Bang Theory Season 6, Episode 9
but I know it's kind of a touchy SUBJECT.
The Big Bang Theory Season 9, Episode 17