Character mistake: When discussing Ensor, Avon says he'd spent 20 years of his life in hiding. Yet in 1-13 "Orac" Blake said he hadn't been seen for 40 years.
Ultraworld - S3-E10
Other mistake: Avon tells Vila to open the starboard airlock, but the exterior shots of the Liberator show there is nothing attached to the starboard side of the ship.
Ultraworld - S3-E10
Continuity mistake: When Dayna & Tarrant are "bonding" they are not wearing their gun belts. Yet the shot of them running down a corridor immediately after escaping shows Dayna has hers on. In the next scene, it's gone again. Later Avon & Tarrant recover three gun belts from the control room.
Revealing mistake: When Veron drops her gun in the ruined church, the noise of it hitting the floor reveals it is made of wood.
Continuity mistake: Cally's hair is longer & curlier in the film sequences (on the planet) than in the studio sequences (on the Liberator).
Other mistake: Just after Cally says that the pilot's death was "a misfortune," she stands and her chair scrapes noisily on the floor. The sound apparently startled Paul Darrow, causing the always-unflappable, nerves-of-steel Avon to flinch: the only time in all four seasons that he's ever seen, albeit briefly, to break character.
Other mistake: When Jenna teleports down near the end of the episode, she takes 3 bracelets with her. When they all teleport back up to the ship she still has all 3 bracelets on. Therefore Vila and Avon should not have been teleported up.
Suggested correction: Jenna has 5 bracelets with her, she's wearing 3 and 2 are in her hands. She gives the ones she's holding to Vila and Avon. However, Ushton and Inga decided to stay and not transport back, therefore, she kept the extra 2 bracelets on her wrist.
Character mistake: Much drama ensues from which wire to cut; ("Right. NO, Left!"). However, the wires are coloured (L-R from our viewpoint: blue, red, green). There is no need for this confusion.