In older shows such as Star Trek: The Next Generation and Star Trek: Voyager, corridors were not dimmed during red alert.
But in the newer shows, the lights are usually dimmed.
In what show did this first happen?
In older shows such as Star Trek: The Next Generation and Star Trek: Voyager, corridors were not dimmed during red alert.
But in the newer shows, the lights are usually dimmed.
In what show did this first happen?
As far as I can tell, the first (in production order) instance was in Star Trek: The Motion Picture.
You can see the bridge lighting is dimmed, but not the corridor/turbolift for some reason.
This design continues through the original cast films, even while Star Trek: The Next Generation avoids it.