Audio problem: When the Atom Sub Reefer Captain says "OK, Lieutenant, dive." it is said by Jeremy Wilkin instead of Ray Barrett.
Give or Take a Million - S2-E6
Continuity mistake: At the beginning of the episode, we see the models of Thunderbirds 1, 3 and 4 on the table next to Nicky and you can see that Thunderbird 1's nosecone near the edge of the table. But when Nicky asks for Thunderbird 3 to be launched, we see a close up of the model, and Thunderbird 1 is now situated next to Thunderbird 4.
Continuity mistake: When we see a close-up of the saucepan containing the 'special' that Maria has prepared, you can see there is one only ladle in the pan, but in the next shot when Maria takes the pan off the stove, a spoon has suddenly appeared.
Give or Take a Million - S2-E6
Continuity mistake: When the security chief says to Preston outside the vault, "OK Preston, check it out," you can see that Preston has nothing in his right hand, but in the next scene a baton has suddenly appeared.
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.