
(SIGHS) Can it be more of
an INTERNAL struggle?
The Big Bang Theory Season 10, Episode 7

If you want, I can call Internal Affairs,
Money Heist Season 1, Episode 11

...and the result
was an INTERNAL blitzkrieg...
The Big Bang Theory Season 1, Episode 11

creating a pair
of INTERNAL connecting rods,
The Big Bang Theory Season 7, Episode 15

The Internal Revenue Service
would strongly disagree.
The Big Bang Theory Season 2, Episode 18