
you've served as Commander
of the City Watch.
Game of Thrones Season 3, Episode 1

It's from Maester Aemon of the Night's Watch.
Their Lord Commander is dead.
Game of Thrones Season 3, Episode 10

now the Lord Commander
of the Night's Watch.
Game of Thrones Season 5, Episode 7

Commander Spock requesting
permission to be unfolded.
The Big Bang Theory Season 5, Episode 13

- Bring it in here.
- Yes, Commander.
Game of Thrones Season 2, Episode 1