Sheldon, that computer
is used for NATIONAL defense.
The Big Bang Theory Season 4, Episode 18
The National Child Care Association
gives it high ratings.
Breaking Bad Season 4, Episode 5
Holy crap, are you connected
to the Oak Ridge National Laboratory?
The Big Bang Theory Season 4, Episode 18
that would make one hell of a story.
National news, I'll bet.
Breaking Bad Season 2, Episode 12
the National Belt Buckle Collectors
meet-and-greet.
The Big Bang Theory Season 10, Episode 19