Revealing: At one point, when the gremlin is about to rip open part of the engine, you can see he has a white sole on his foot, part of the costume.

Continuity: When Erich falls downstairs, Talky Tina flies off of the stairs too, yet in the next shot she's shown still rolling downstairs.

Visible crew/equipment: The boom mike shadow is visible above Annabelle, after she tells Christie that Linda is at the door.

Continuity: When Erich throws Talky Tina across the room, when she hits the floor, her arms and hair change position between shots.

Continuity: After Erich takes Talky Tina back out of the trash can and pulls her from the burlap bag, the doll's left arm is pointing straight up above its head. When the shot cuts to a different angle, the arm is suddenly down at Tina's side, even though Erich didn't move it.

Continuity: When Christie walks up the path, from the car, with her mother, the package she holds swaps arms between shots.

Factual error: Cook draws his sun and planets in the sand, saying that it's "my galaxy." When Norda draws hers, he calls it another galaxy. Wrong. He's drawn a solar system, not a galaxy. (A galaxy is a collection of millions of solar systems.) The terms are in no way synonymous - there's a vast difference, and a trained astronaut would definitely know that, so it's the writer's error, not a character mistake. Their little ships can't possibly cross galactic voids (that would require tens of thousands of years, even at many times the speed of light), so Cook and Norda's planets are in different star systems in the same galaxy - this one.

Continuity: When Raymond arrives to check on Harmon, Flora is sitting at the breakfast bar opening the morning paper. She's holding it straight up in front of her, but when the shot reverses angles, the paper is suddenly lying flat on the bar.

Continuity: After Oliver hits the bicyclist, the bike's front wheel is turned upright, but is still intact, and the boy has been thrown across a lawn to the edge of a phone booth. In the next shot, however, the wheel is suddenly crumpled, and the unconscious boy has somehow moved to a completely different place on the grass, several feet away from the phone booth.

Revealing: The aliens cause a power fluctuation, and Mr. Tillman complains that all the lights in his house are flickering on and off. But the lamps in his living room are burning steadily. The "flickering" light is originating from what is obviously stage lighting above the set.

Deliberate "mistake": The first of two twists meant to come at the end of this episode was the revelation that the mysterious dark rider chasing Anne was herself - 25 years in the future. According to writer Richard Matheson, the director chose, for some bizarre reason, to deliberately spoil this "reveal" by inserting a close-up of the rider early on, showing the viewers who she was at the outset.

Continuity: After crawling from the water onto the shore, the Southerner lies on his back with his shirt gaping open, exposing his entire chest. But in the next shot, his shirt has fastened itself, completely covering his chest again.

Deliberate "mistake": Pamela has acquired an American accent during her many years in the US. But her American-born daughter, played by Celia Lovsky, has an unexplained Viennese accent.

Continuity: When Phyllis stumbles back toward the window, both its draperies are neatly in place. Next shot, just before she crashes through the glass, the drapes are suddenly half pulled down and a broken curtain rod that wasn't there seconds before hangs down over the window.

Plot hole: Though the ending is a lovely twist of poetic justice, it seriously strains credibility. Vassiloff is a professional assassin who brags of over 800 kills, yet after his quarry escapes, he stupidly walks back into a room which he himself earlier booby-trapped with a live bomb.

Continuity: Bob's cigarette sets the artificial grass on fire, and he rapidly stamps it out. When he finishes extinguishing the flames, the grass is scorched, but intact. He doesn't touch it again, but one shot later, the burned grass and all its ashes have vanished and a huge hole has appeared, revealing the metal mesh underneath.

Factual error: Garrity is a con artist with an accomplice who pretends to be a resurrected dead man. Yet the accomplice somehow achieves the unachievable by vanishing, via fade-out special effect, in front of several townspeople. Since he's a fraud, he couldn't possibly do this.

Deliberate "mistake": Garrity blackmails the town citizens into paying him not to resurrect their unlamented "loved ones." Amazingly, every man in the saloon just happens to have hundreds of dollars ($500 - $1200 each) in his pocket to pay up with. In 1890 money, that's roughly equivalent to a group of modern-day bar patrons all carrying ten or fifteen thousand dollars around in their pockets. The scenario was apparently used in spite of its incredibility just to more quickly advance the plot.

Deliberate "mistake": Sport's voice is noticeably dubbed by a different actor in several scenes throughout the episode. Her voice inside Aunt T's house is the original audio track done by the child actor. During the other scenes, the voice is done by June Foray (uncredited).