The FINAL confrontation?
Westworld Season 3, Episode 8
Okay, the NASA website says
Howard's FINAL descent has begun.
The Big Bang Theory Season 6, Episode 4
Westworld Season 2, Episode 10
Our decision is FINAL.
Game of Thrones Season 2, Episode 4
...watching the FINAL season of Babylon 5
with director commentary.
The Big Bang Theory Season 3, Episode 15