
so coherence would make it
an easier SIGNAL to see.
The Big Bang Theory Season 11, Episode 8

And when we give the SIGNAL,
bring us back down.
Game of Thrones Season 4, Episode 9

The SIGNAL for the attack
will be a bonfire.
Game of Thrones Season 4, Episode 1

When Mance gives the SIGNAL
and we hit Castle Black,
Game of Thrones Season 3, Episode 7

Must be getting a Wi-Fi SIGNAL
from somewhere else.
The Big Bang Theory Season 8, Episode 22