Then expressed my gratitude
that Scientific American...
The Big Bang Theory Season 8, Episode 18
to spell "gray" with an "a"
like an American.
The Big Bang Theory Season 12, Episode 9
No, heh, I'm an American hero,
your uncle brings people nuts, okay?
The Big Bang Theory Season 6, Episode 18
Am I an American hero?
The Big Bang Theory Season 9, Episode 23
...that is not the American spirit.
The Big Bang Theory Season 2, Episode 18