
Well, you would be the authority
on the SUBJECT.
The Big Bang Theory Season 12, Episode 23

I thought that SUBJECT
had run its course,
The Big Bang Theory Season 7, Episode 23

While we're on the SUBJECT of war,
Game of Thrones Season 1, Episode 8

Just change the SUBJECT.
The Big Bang Theory Season 4, Episode 22

And then the SUBJECT
got changed somehow.
The Big Bang Theory Season 2, Episode 10