Aye.
Game of Thrones Season 1, Episode 4
Aye.
Game of Thrones Season 5, Episode 2
Aye!
Game of Thrones Season 2, Episode 10
It started that way, AYE. Now I'm a knight.
Game of Thrones Season 4, Episode 1
Aye. But the dead won't hear them.
Game of Thrones Season 1, Episode 9