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.
Thunderbirds (1964)
1 mistake in Season 2 generally
Starring: David Graham, Ray Barrett, Peter Dyneley, Shane Rimmer
Trivia: Although he is the main villain, the Hood appears in only six episodes throughout the entire series.