
...I'm gonna get
a NATIONAL commercial.
The Big Bang Theory Season 3, Episode 12

that there was no NATIONAL
tricolored flag
The Big Bang Theory Season 12, Episode 13

A state can allow you to go into
the NATIONAL reserve and steal the gold,
Money Heist Season 3, Episode 5

Sheldon, that computer
is used for NATIONAL defense.
The Big Bang Theory Season 4, Episode 18

at the National Accelerator..."
[inhales]
The Big Bang Theory Season 12, Episode 9