Factual error: "Treasure of the Ages": Haskell finds a jeweled cross that's supposedly from a shipwreck hundreds of years old. Only the relic he pulls from the sand is spotless: not a barnacle, rust spot or touch of encrustation on it. After centuries at the bottom of the ocean? Wouldn't happen. (00:02:00)
Continuity mistake: "Treasure of the Ages": In the beginning, one diver stabs the other, releasing a cloud of blood into the water. In the very next shot, however, not a trace of the blood remains. It couldn't possibly dissipate in that short a time. (00:02:30)
Continuity mistake: "Happy Valley": Just before the station wagon crashes and burns, it collides with a red car parked on the street. The shot cuts to an opposite angle from the neighbors' point of view, and the red car disappears. (00:04:00)
Visible crew/equipment: "Darien Comes Home": In the opening sequence (supposedly taking place in a remote, wooded area), several very bright studio lights are reflected in the shiny surface of the murder victim's car. (00:04:45)
Revealing mistake: "Darien Comes Home": When Zack puts the body in the driver's seat, the car is a black 1990s sedan. When he pushes it over the cliff, however, stock footage turns the car into a much older model that's now gray instead of black. (00:04:50)
Plot hole: "Showdown": Darien's lost hat and jacket reappear without explanation after Kane finds him wandering in the desert. Also unexplained is how Kane conveniently happens to be leading an extra, unnecessary horse - unnecessary, at least, until he stumbles across the stranded Darien. (00:15:00)
Continuity mistake: "A Stranger in Time, Part 2": Darien crawls through a sewer pipe and exits through a rusty grate, yet doesn't have a speck of dirt on his clothes. Later in interrogation, smudges appear on his sweatshirt, but those vanish again when he escapes. (00:26:45)
Plot hole: "Cool Hand Darien": In the swamp, Luther overpowers both guards and escapes. As they were both out cold and no one else was around, he could easily have taken the keys from them and unlocked his leg shackles. Instead, assumedly because it's more dramatic, he sneaks back into the prison compound to steal a sledgehammer and break the chain. (00:34:30)
Continuity mistake: "Cool Hand Darien": When Luther breaks the chain on his shackles, he is still wearing the leg cuffs and the trailing pieces of chain on either side. He doesn't stop anywhere to come across a key, but when he bursts into the mine to rescue Darien, the shackles have disappeared. (00:35:00)
Visible crew/equipment: "Night of the Savage": When David chases Claudine through the deserted newspaper office, several equipment shadows move across the ceiling above them. (00:37:00)
Continuity mistake: "Out for Blood": Parker disintegrates a crystal decanter and wine glasses with his laser weapon, then fires at several more things in the house. During this sequence, he zaps the same decanter and glasses, which seem to have re-integrated, over again. (00:37:15)
Continuity mistake: "Lethal Weapons": Darien is holding a disintegrator rifle when he leaps over the electronic fence. It flies from his hands when he lands, skidding across the porch, but disappears from the background when he gets up. It reappears just in time for him to snatch it up and shoot Cole with it. (00:39:10)
Plot hole: "Night of the Savage": Lambert tosses both Selma and his PPT weapon to the floor of the printing warehouse. After Leeds is killed, Lambert retrieves Selma, but leaves without recovering his PPT, a weapon of the future that he'd never leave behind. (00:43:00)
Visible crew/equipment: "Death Takes a Holiday": When Darien and Sajak walk past the mansion, the camera shadow can be seen traveling alongside their shadows at the lower left corner of the screen. (00:43:15)
Deliberate mistake: "Treasure of the Ages": Darien delivers Mary's child during the hurricane. There's no time lapse in the scene, but somehow the kid emerges perfectly clean: no blood, no placenta - and no umbilical cord. Darien also neglects to wash his hands before reaching in to turn the breeched baby around. (Ewwwwww!) (00:45:00)
Continuity mistake: "A Stranger in Time, Part 2": Darien's arrival in 1993, shown in part 1, is recapped in part 2. But the director appears to have chosen different takes for the recap. Much of the dialogue differs substantially, and Selma's explanation that he's materialized in the ladies' room is left out altogether.
Continuity mistake: At least three different birth years are given for Darien Lambert in various episodes, among them 2163, 2160, and 2157.
Revealing mistake: "The Crash": Due to the use of both models and stock footage, what is supposed to be one airplane has three very different appearances. As the passengers board, we see the "real" plane. In the air, it's another plane altogether (stock footage). When it crashes (a model), it looks completely different yet again.
