Revealing mistake: The double-bladed axe one of the Decimas uses to attack the station windows is wobbling as he strikes with it. Small wonder he's not getting far at breaking in, with a weapon made of rubber. (00:22:30)
Space Fall - S1-E2
Revealing mistake: Just after Avon slips into the access tunnel and the prisoners close the hatch behind him, the star field in the window shakes and wobbles. (00:17:45)
The Way Back - S1-E1
Revealing mistake: When Tel Varon walks in front of the wall screen in the justice data center, a flash of gibberish lettering and a blue matte line both appear briefly above his head. (00:36:40)
Time Squad - S1-E4
Revealing mistake: Jenna moves down the corridor on her way to the hold with her Liberator gun in hand. The weapon lights up and flashes several times, even though she isn't firing it. (00:37:25)
Space Fall - S1-E2
Revealing mistake: The boom shadow is visible moving swiftly across the actors' heads when Avon says, "You've got an army of five, Blake." (00:16:40)
Space Fall - S1-E2
Revealing mistake: The uppermost of the flight consoles of Liberator isn't fixed down in this episode, and wobbles almost every time it is touched, and not just small wobbles. Watch for the 10 seconds or so after Jenna says "Eventually I might just be able to get her to start and stop", and you'll wonder how she didn't knock the entire prop off whatever it's sitting on and onto the floor.
Cygnus Alpha - S1-E3
Revealing mistake: Stock footage of the London's launch from Earth is run in reverse when it lands, supposedly 8 months later, on Cygnus Alpha. What are the odds that a remote penal planet will have a launching pad with configurations, lights, buildings and background terrain all completely identical to the launch stage on Earth? (00:10:20)
Suggested correction: Airports resemble each other, prisons resemble one another. So do hotels, shops etc. Why isn't this possible?
Revealing mistake: When the Federation troopers blow open the interrogation room door, you can see a brief glimpse, through the smoke, of the thrown sledge hammer that was used to make the door fall in. (00:48:15)
Space Fall - S1-E2
Revealing mistake: Whenever the prison ship fires its engines, the smoke trails travel to the top of the screen, as smoke does in an atmosphere. In space however, it should billow away from the engines in a more or less straight line.
Space Fall - S1-E2
Revealing mistake: Aboard the London, as Raiker opens the rec-room door, a boom mike shadow moves across Avon's face. (00:04:30)
The Way Back - S1-E1
Revealing mistake: When the prison ship launches, the cloud of smoke reveals the black wires that are lifting it up.
Cygnus Alpha - S1-E3
Revealing mistake: The high priest Vargas is wearing a nice new pair of decidedly 20th century basketball shoes under his robe. We even get a good close-up of them at one point. (00:49:15)
Redemption - S2-E1
Revealing mistake: As Avon and the crew run through the station and the guard tosses a grenade at them, you can see the white packet of incendiary charges on the floor that will set off the grenade's explosion. (00:42:30)
Revealing mistake: Liberator's auto-repair circuits have mysteriously stopped functioning. The molding on the top center flight deck console is hanging loose, a glitch that remains for several episodes. (00:23:50)
Revealing mistake: When Bek pulls the silver shroud off of Petey, note the movement on the chest of the corpse, which is obviously breathing. (00:08:30)
Revealing mistake: BBC costume recycling allows one of the natives on Helotrix to show up wearing one of Tarrant's old 3rd season outfits. Another wears an even older, 1st season costume of Avon's. (00:22:40 - 00:24:25)
Sarcophagus - S3-E9
Revealing mistake: When Tarrant, trying to call Dayna, falls against the flight deck console, the whole thing tilts visibly. (00:38:45)
Revealing mistake: As Liberator approaches it, the planet changes color. (00:08:05 - 00:13:40)
Revealing mistake: A shot of Scorpio en route to Betafarl falls victim to a special effects problem. The camera shooting the model was apparently bumped and shaken, so the ship is suddenly wobbling so badly it's a wonder it can keep a straight course. (00:22:20)
Revealing mistake: The Federation Commander reads a report to Servalan, but when the camera angle shifts to a shot taken over his shoulder, you can see that he's "reading" from a colorful plastic board with no printing on it whatsoever. (00:14:20)