Visible crew/equipment: Straker brings Paul Foster to SHADO Control and takes him into his office, then just as Straker says, "Ok, Alec, wheel them in," the boom microphone pokes into the shot at the left side of the screen. (00:44:05)
Identified - S1-E1
Visible crew/equipment: Near the start, Henderson and Straker exit the plane and enter the Rolls-Royce, then just as the car passes the camera, the reflections of the camera, camera operator, and another crew member with an arm up holding a small screen are visible on the window. (00:03:40)
Revealing mistake: While Straker and Col. Lake enter the studio lot, they make a few stops, then exit the car; the silver metal rods holding the doors up are visible in a few shots. (00:16:50 - 00:18:50)
The Cat with Ten Lives - S1-E3
Revealing mistake: Jim Regan waits inside Paul's car, then attacks him. When they exit the car, the door is up without a rod. But when they stand beside the car, there's a black rod holding the door up. (00:37:40)
The Cat with Ten Lives - S1-E3
Deliberate mistake: When MoonBase Interceptor pilots put their helmets on before launch, the mics are on the left side of their helmets, but when they're space borne to intercept UFOs at least one pilot closeup is a flipped shot. Then, after Lake says, "They're wide open now, where are they," the interior closeup of a cockpit is also flipped; note "GYRO" is reversed. (00:02:25 - 00:04:55)
The Cat with Ten Lives - S1-E3
Continuity mistake: Right after the "Immediate launch" on MoonBase, when it cuts to Miss Holland, she's walking from her office into Straker's office. The cat runs away from Holland, and in the cat's close-up, it exits Straker's office. However, this doorway is not leading to Miss Holland's office in this close-up. (00:41:20)
Other mistake: With the red alert at MoonBase, all three Interceptors are launched with their loaded missiles. Then, as the UFO gets closer, the Interceptors are within range, yet Straker orders them not to intercept. However, when the three Interceptor pilots are told to return to MoonBase, all three Interceptors are inexplicably missing their missiles. (00:03:25 - 00:05:35)
Identified - S1-E1
Deliberate mistake: While Sky One is flying above SHADAIR, Peter spots the UFO at 12 o'clock. He then tells SHADAIR they're the target. Peter's next two close-ups are flipped shots. Note his facial scars and helmet microphone. (00:32:35)
Other mistake: Lunar Module 32 has number 4614 and more on its side; then it explodes upon re-entry to Earth. But later, when Paul takes up Lunar Module 29, it has the same numbers and markings as LM 32. (00:15:00 - 00:27:10)
Continuity mistake: When the Apollo 8 space debris is shown, the print type of "USA" on its side changes between the long shots and closeups. (00:04:20)
A Question of Priorities - S1-E5
Revealing mistake: After SHADO Control alerts all ground radar to the red alert, when Sky One is launched, there are exterior close-ups of Sky One airborne, and the four wires supporting the aircraft are much too visible in these close-ups.
Revealing mistake: When Straker and Col. Lake stop to check out the frozen people (fixed like statues), Lake spots a bird frozen in midair, and in the bird's close-ups the multiple wires (more than six) holding the fake bird are visible. (00:18:40)
Deliberate mistake: After Straker shoots Turner, he slumps over in his HS mini car and it goes around in circles. Then, the last shot of Turner is a flipped shot; note Turner's uniform patch and the car's backwards HS. (00:46:05)
The Cat with Ten Lives - S1-E3
Continuity mistake: When Ayshea finds the Siamese cat wandering around SHADO Control, in the close-up of Ayshea petting the cat, her fingernails are short; but otherwise, Ayshea has long fingernails. (00:29:45)
The Cat with Ten Lives - S1-E3
Revealing mistake: Jim awakens alone in his car with the Siamese cat, and when he rushes out shouting for Jean, there are two black rods under the car's doors. But as soon as Jim gets back into his car, the rods vanish between shots. (00:21:55)
The Cat with Ten Lives - S1-E3
Continuity mistake: At Murial and Albert's, when the ouija alphabet cards are placed on the table, the "YES" card alternates being between the "G" and "H" cards or the "H" and "I" cards, depending on the camera angle. Other cards change direction/position as well. (00:13:40)
Continuity mistake: When Straker and Freeman arrive at Miss Ealand's office, there's a white jacket hanging on the red upright coat rack, but next shot as the doors to Straker's office open, the jacket has vanished. (00:40:55)
Revealing mistake: While the bomb is being transported into space, when Paul arrives at the hospital, the metal rod holding the door is visible.
Revealing mistake: When Foster arrives at Straker's car, there's a black rod under the car's door holding it up that should not be there.
Revealing mistake: At the start, when the surfaced SkyDiver searches for Atlantica survivors, in Waterman's close-ups SkyDiver's surface is semi-transparent. Later, when Straker is aboard SkyDiver, it happens again in his close-ups. (00:02:35 - 00:04:40)