Revealing mistake: In the shot that shows Jeff Tracy reading a newspaper, the date shown on the paper is 1964, however, the year the series is supposed to take place is in the mid to late 21st century.
Continuity mistake: When the tied up Penelope initially attempts to contact Jeff, you can see two books to the left of the bomb standing up. But when she tries to contact Jeff from the centre of the room, the books have suddenly been knocked over. In the next shot of Penelope the books are standing up again.
Pit of Peril - S1-E2
Continuity mistake: When Brains is showing Scott and Virgil the diagram he has drawn, you can see in some shots he is holding a pencil in his right hand. But in close-ups of the diagram, he no longer has the pencil in his hand.
Continuity mistake: When we see a shot of Thunderbird 3 in space on its way to saving the Sun Probe, the "Thunderbird" logo on its side is missing. It reappears later on in the episode.
Continuity mistake: When Lady Penelope is speaking to the security guard at Robotics International, she is initially standing at the far end of the table but in the next shot she is now much closer to the guard.
Continuity mistake: When Jeff is speaking to Virgil and Brains at Tracy Island, Brains can be seen with his right hand on the desk, but when the camera angle changes, he now has his hand by his side.
Continuity mistake: When Professor Holden is demonstrating The Mighty Atom to the other professors, the position of the device on his hand changes between shots.
Continuity mistake: When we see the Professor unconscious by the cabinet in the caravan, there is a bottle of white formula next to him that changes position between shots.
Continuity mistake: When the Tracy family are sitting at the table eating their breakfast, there is a green cereal box on the table, but when Jeff says he is going back to the lounge to wait for Brains' call, the box has disappeared.
Continuity mistake: When the stranger waves at Prescott, telling him to slow down, we cut to Prescott in his car and you can see that the car has a windscreen, but when the car stops near the stranger in the next shot, the windscreen is missing.
Continuity mistake: When the Gray and Houseman Construction Company vehicle is moving along at the beginning of the episode, the launching pad is raised, but after a quick cut to the crew, we return to the vehicle and the pad is now lowered.
Continuity mistake: When we see the Hood's Airport Police jacket, you can see that underneath "Airport Police" there is a five-pointed star, but when we see a close-up of the star in the next shot, it has changed to a six-pointed star.
Continuity mistake: When the Hood informs Commander Norman of Air Traffic Control that there is a bomb on Fireflash in the videophone booth, you can see that the Hood has one hand on the button panel, but the next shot shows him with both hands on the panel.
Continuity mistake: When Jeff is speaking to Kyrano at the beginning of the episode, he has a letter in his right hand and an envelope in his left, but when Jeff raises his left hand in the next shot, the envelope has disappeared.
Other mistake: When Scott and Virgil are putting Chip to bed towards the end of the episode, the globe in Chip's bedroom is upside down.
Continuity mistake: When Morrison is looking out of the window in Chip's bedroom, he closes the shutters and walks away from the window, but in the next shot he is standing next to Chip's bed.
Move - And You're Dead - S1-E20
Continuity mistake: The shot of Brains' lab inside Thunderbird 2 shows a window, yet apart from the cockpit, there are no other windows on the exterior of TB2.
Continuity mistake: The car park is said to be four miles from the building, but when the fire starts by a car crash in the same car park, the fire goes straight up the building.
Continuity mistake: When Joe Carter parks his car in the car park in the Thompson Tower, you can see that his car is white. But when the lady driver crashes her car into his later on in the episode, the car is now yellow.
Terror in New York City - S1-E4
Other mistake: When Tin-Tin says "However" while typing Jeff's letter, her lips do not move.
