Continuity mistake: When Joe Carter parks the car in the car park, there are several cars to the left of him. In the close up shot of the car several cars have disappeared.
Continuity mistake: When Sir Harry drives Lady Penelope down to FAB1 in his jeep, he is wearing a yellow helmet in the zoomed-out shot. When he is seen in close-up he is no longer wearing the helmet. Then, when the shot zooms out again, he is wearing the helmet.
Continuity mistake: Throughout series 2, the five pictures of Jeff Tracy's sons on the wall at Tracy Island are completely different to the ones seen in the first series. But when Scott prepares to launch Thunderbird 1, you can see the picture of John is the one seen in series 1.
Continuity mistake: When Thunderbird 3 takes off from Tracy Island, look at the "3" at the bottom of the rocket when it goes up from the hangar. It is a completely different "3" to the one that was seen in the previous shot.