No, heh, I'm an American hero,
your uncle brings people nuts, okay?
The Big Bang Theory Season 6, Episode 18
You know,
I'm growing to like American football.
The Big Bang Theory Season 6, Episode 1
I read it
in the Journal of American Neuroscience.
The Big Bang Theory Season 1, Episode 3
Kleingast's Field Guide
to North American Insects.
The Big Bang Theory Season 3, Episode 2
to spell "gray" with an "a"
like an American.
The Big Bang Theory Season 12, Episode 9