Move - And You're Dead - S1-E20
Continuity mistake: When Jeff Tracey is first contacted by Alan, he is sat behind his desk, but when the picture cuts back to him after a quick shot of Alan, he is suddenly perched on the front of the desk reading a magazine.
Continuity mistake: When Brains falls under The Hood's influence, he collapses, and between shots his glasses simply disappear. They are subsequently shown to have fallen off, but the action is not seen on screen: one moment the glasses are on his face and the next they have vanished.
Terror in New York City - S1-E4
Continuity mistake: Watch the time on the clock on the wall in the USN Sentinel during the missile attack. At the start of the attack it's 12.45pm, but later on it changes to 1.05pm, and when Washington informs the Sentinel Commander to stop the attack, it's now 1.35pm.
Continuity mistake: When we see The Hood's plane crashed into the General's mansion in a view from Thunderbird 1's cockpit window, there is a red car parked near the mansion covered in dust. But after Scott says that the stolen film could not have survived that smash, we cut back to the mansion and the dust on the red car has disappeared.
Terror in New York City - S1-E4
Character mistake: When Jeff is on the phone to Washington, thanking them for arranging the Sentinel to pick up Thunderbird 4 and take it to New York, the man in Washington replies, "That's the least we can do, Mr Tracy." So at least one person knows that Jeff is involved with International Rescue. This betrays the secrecy of the organisation that Jeff himself demands.
Terror in New York City - S1-E4
Character mistake: Inside the Mobile Radio Control Police Van, there is an "Ultra Short Wave" device that is labelled "Ulta Short Wave."
Character mistake: The situation in this episode is that a clerk, Lambert, is trapped inside a bank vault that is having the air removed. When IR arrives they focus all of their efforts on forcing a man-sized entrance before the air runs out, but don't consider first making a small hole to allow air in, thus giving them plenty of time to create an entrance afterwards.
Character mistake: The end of this episode concerns IR chasing down a copy of the photos the Hood taken of the Thunderbird vehicles. However, they show no concern for being photographed in person, as they're lounging around in casual clothes in the end, on an active film set with cameras everywhere, and no camera detector on their persons.
Factual error: The reactor controllers in both plants, and Brains, claim that cutting off the seawater intake would resolve the runaway reactor, and help bring it under control. In fact the opposite is the case - the plant's purpose is to purify and desalinate seawater by boiling, so processing more of it would soak up the excess heat the reaction is producing. Cutting off the intake would prevent adequate cooling, allowing the heat to build up and damage the plant further. We know the seawater isn't somehow used for fuel, because we see Scott and Virgil operating fuel rods in the reactor.
Revealing mistake: When the Plutonium store doors are blown off by the Jet-Air Blaster on the Laser Cutter Vehicle, you can see a length of string pulling the doors off from the inside.
Revealing mistake: In a close-up of the hitchhiker putting the bracelet on Prescott's wrist, you can see the bracelet is not locked on.
Audio problem: When Scott and Lady Penelope are communicating with each other via mobile control, the timing on the lip sync between the two characters during the split screen effect is completely out of place.
Audio problem: When Jeff says "Scott, Alan, Tin-Tin" after hearing from the TV Reporter that all hope is fading for Thunderbird 3, the words don't match his lips.
Continuity mistake: When we see Tin-Tin passed out on the table when Thunderbird 3 is on a collision course with the Sun, the style of writing of the "Safety Beam" and "On" and "Off" on the control panel change between shots.
The Perils of Penelope - S1-E3
Continuity mistake: While Parker is driving FAB 1, when Penelope holds up her communications compact for Parker to identify the train attendant, in the shot facing the compact she has a pink sleeve, but Penelope's attire is all blue. (00:30:20)
Visible crew/equipment: After Central Control announces the countdown for Red Arrow project is now operating, when it cuts to the tower the order is given to "begin photographic alert procedure," and in the next shot a human finger (with a long polished fingernail) is visible behind the seated male marionette, as he leans forward. (00:04:45)
Continuity mistake: After Lady Penelope rescues Brains from the psychiatrist's office, when she holds out her communications compact to message Scott it's in her left hand, but in the closeup it's in her right hand and the color of her sleeve also changes. (00:45:50)
The Duchess Assignment - S1-E21
Continuity mistake: After the Duchess has been rescued by "those romantic young men from International Rescue," when the Duchess removes the canvas from her umbrella, in the closeup (with human hands) she's wearing a pink button-down, but in all other shots there are no buttons whatsoever. (00:45:20)
Continuity mistake: After Scott realises that someone has tampered with TB1's camera detector, when it cuts to the movie set's camera, Agent 79's (the Hood) disguise eyeglasses are hanging beside the mask, but in the next shot the eyeglasses have vanished. (00:29:50)
