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 president-elect's body changes both poses and locations on the floor between the time Sleer shoots him and the time he's found and the murder investigation is begun. (00:26:00 - 00:31:25)
Continuity mistake: Tarrant and Dayna mug a pair of Helotrix citizens and change clothes with them. Later, when the pair are beamed back to Scorpio, they change back into their original costumes in mid-teleport. (00:44:05)
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)
Continuity mistake: Maybe he ran into a barber along the way? Avon beams into the woods on Bucol 2 with his hair brushed straight back, but a few shots later, it's restyled and combed neatly down over his forehead. (00:43:35 - 00:44:45)
Continuity mistake: When Avon & Co. barnstorm the ruined lab, a large piece of plastic debris on the floor is there when they enter, but then disappears between takes. Avon actually slips on it coming in, and does a hilariously un-macho little balancing dance. To quote (and agree with) actor Paul Darrow: "I can't believe they left that in!" (00:45:00)
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)
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)
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)
Headhunter - S4-E6
Revealing mistake: When Avon pushes a button to call Tarrant, the entire control panel tips upward, revealing that it's not anchored to the console at all. (00:12:50)
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)
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: 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)
Headhunter - S4-E6
Visible crew/equipment: Someone with a mustache moves briefly into the shot behind Avon when he's questioning the android about its plan to unite with Orac. (00:35:45)
Headhunter - S4-E6
Revealing mistake: After its "borrowed" head is blown off and it rampages through the base headless, the android mysteriously gains 10 inches in height and has much longer arms. If they'd just found a shorter actor to wear the headless costume, it might have looked more convincing. (00:44:05)
Headhunter - S4-E6
Character mistake: Tarrant says they can't land the ship without Slave. Yet in 4-1 "Rescue" he questions the competency of the automatic systems and offers to land the ship himself.
Headhunter - S4-E6
Plot hole: The 6 second countdown lasts much longer than 6 seconds.
Visible crew/equipment: When Nebrox is relaxing in a chair on Scorpio's flight deck, large bright yellow power cables are visible running from the console behind him and across the set floor to the right of the shot. Maybe they were jump starting the space ship? (00:21:50)
Other mistake: The number of buttons on the left shoulder of Tarrant's costume keeps changing throughout this episode. Most of the time, all 4 are there, but in several intermittent shots, one of the buttons is missing. (00:32:00 - 00:37:25)
Continuity mistake: During the punch-up with Cancer, Tarrant's holster is missing.
