The SIGNAL turns up in Galicia,
Alicante and even the rest of Europe.
Money Heist Season 3, Episode 5
...the dark matter SIGNAL found
in sodium-iodide crystals by the Italians.
The Big Bang Theory Season 2, Episode 15
Cut me in half and I won't be
able to give the SIGNAL.
Game of Thrones Season 2, Episode 9
No SIGNAL, no plan.
Game of Thrones Season 2, Episode 9
All I need to do is give a SIGNAL,
and they'll rescue me.
Game of Thrones Season 5, Episode 7