[Grizzled Bear]

"Go to RED ALERT!"

But sir, if we go to red alert, we'll have to change the light bulb.

[Perdogg]

This is the only thing Lt. Ellis changes.

[null and void]

HOLLY: (Appearing on the screen) Purple alert, purple alert!
LISTER: What’s a purple alert?
HOLLY: Well, it’s sort of like, not as bad as a red alert, but a bit worse than a blue alert. Kind of like a mauve alert, don’t want to say “mauve alert.”