
And what is DUTY...
Game of Thrones Season 1, Episode 9

Dereliction of DUTY in the face of
the enemy is a court-martial offense.
The Big Bang Theory Season 2, Episode 16

You have a DUTY, Your Grace.
Game of Thrones Season 6, Episode 7

..."Call of Duty 3," "Rock Band"...
The Big Bang Theory Season 3, Episode 13

it is my DUTY to advise you against it.
Game of Thrones Season 3, Episode 10