Deliberate mistake: Because Paul Darrow had turned an ankle while shooting the fight scene with Gunsar, the uninjured Avon is inexplicably limping throughout most of the fight. (00:14:00)
Visible crew/equipment: While pulling back from Vila's conversation with the gaming computer, the camera apparently runs over a cable. There's a visible jump in the picture and an audible clanking noise. (00:37:20)
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)
Continuity mistake: The damaged Orac has long loose wires hanging out when Dorian carries it off the ship, but they disappear in the next shot, when he enters the base. (00:24:40)
Headhunter - S4-E6
Continuity mistake: Muller and Vila have a brief struggle over the teleport console. When Muller grabs at the controls, Vila pulls his hand away, making the teleport lever break off and fall onto the console. It fixes itself again a short time later. (00:06:05)
Continuity mistake: Cato's body moves to a different spot on the floor relative to the unconscious Avon, who also moves. (The two are suddenly much farther apart than before.) Cato's hands also change positions. (00:31:40 - 00:35:00)
Headhunter - S4-E6
Continuity mistake: Muller's wife teleports holding her spacesuit gloves with the fingers pointing up. She arrives with them in the same position, but when the shot cuts, they've reversed positions and the fingers are now pointing down. (00:28:40)
Headhunter - S4-E6
Continuity mistake: Relative to the white striping on Scorpio's deck, the unconscious Vila changes locations on the floor three times between shots. (00:21:10)
Continuity mistake: When Dayna and Tarrant find Keeler unconscious, Tarrant's teleport bracelet disappears between shots. It's back a few shots later, though. (00:15:40 - 00:16:10)
Headhunter - S4-E6
Continuity mistake: The headless android falls into a pile of rubble after an explosion, getting up with its red, white & blue striped costume in smudgy tatters. A moment later, its outfit is mended and completely clean. Still later, when the android is walking outside, its costume is dirty and shredded again. (00:33:30 - 00:35:00)
Factual error: Servalan's ship takes off from the surface of Bucol 2 with Avon and crew standing directly below it. Yet for some reason, the down-blast from the very large launching ship does nothing more harmful than slightly mess up their hairdos. (00:47:50)
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)
Continuity mistake: Just before Scorpio crashes, Avon grabs Orac and teleports to safety. When they're still aboard the ship, Orac has several wires hanging loose from underneath. When they materialize on the planet, however, all the loose wires are magically repaired and no longer hanging. (00:16:30 - 00:17:45)
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)
Headhunter - S4-E6
Visible crew/equipment: When Avon is questioning Muller's wife at Xenon Base, an equipment shadow moves across the top of his head. (00:03:25)
Continuity mistake: Avon apparently found a hair salon somewhere on the supposedly deserted planet Terminal. Between the time he and his crew were marooned in the previous episode and the events in this one, he's suddenly acquired a spiffy new blow-dry haircut. (00:03:10)
Visible crew/equipment: When the crew are discussing Helotrix, big yellow power cables (probably used to light up Scorpio's main flight console) are showing at the right of the screen. (00:09:20)
Continuity mistake: Tarrant's hair seems to have grown at least an inch overnight. It's longer and bushier than it was in "Terminal," which supposedly took place the day before. (00:09:45)
Continuity mistake: The planet Terminal changes shape and color completely from its appearance in the previous episode. Where it was blue-green and cigar shaped before, it is now gray, striped like a yarn ball, and round. (00:07:00)
Revealing mistake: Scorpio is attacked upon entering Gauda Prime's atmosphere. The ship lurches left: everyone leans left and hangs on. The ship lurches right: everyone leans right and hangs on. The ship rolls over a full 360 degrees: no one leans or hangs on, nor do they fall out of their unbelted flight chairs. And oddly, those same chairs that held fast here tip over with ease later, when Avon escapes with Orac. (00:13:45 - 00:16:15)
