This is hilarious: #Signal
Series B, Episode 05 - Pressure Point
VILA: He's failed to make contact with Kasabi.
AVON: Exactly. But Kasabi's signal came from the rendezvous point. Blake has arrived there and failed to make contact.
https://blake.torpidity.net/m/205/250 B7B7
Series B, Episode 04 - Horizon
BLAKE: They don't.
GUARD: You. [Signals to Selma] Come with me.
https://blake.torpidity.net/m/204/475 B7B5
Series B, Episode 04 - Horizon
AVON: What did it say - decode.
ZEN: It is in Federation code nine. Message reads, "Top priority signal to any Federation pursuit unit, from Kommissar, planet Horizon. Request assistance. Ruler of Horizon unreliable, am disposing of him. Rebel spaceship at grid reference ten by thirteen double-u zed. Request you destroy this spaceship at once. Also inform Federation Central Control of this action. Await confirmation."