The Perils of Penelope - S1-E3
Trivia: The launch of the Sun Probe at the start of the episode is the same event that was seen in the flashback at the start of "Sun Probe". The events of that episode take place one week after the launch, so this episode takes place immediately before. Indeed, this episode and "Sun Probe" can be viewed as the series' only two-part story, although they have never been broadcast as consecutive episodes.
Trivia: The "Stingray" tune "Blues Pacifica" is heard playing on the radio in FAB 1.
The Duchess Assignment - S1-E21
Trivia: Wilbur Dandridge III was previously Warren Grafton in the episode "Brink of Disaster".
Attack of the Alligators - S1-E23
Trivia: The stock footage of the thunderstorm was later used for the title sequence of "The Prisoner".
Trivia: There is the use of a hand in the same frame of a puppet in this episode, as in the castle a human hand (Southern's) can be seen playing with a pen while the puppets of Kenyon and Dempsey can be seen in the background.
Move - And You're Dead - S1-E20
Trivia: When Alan is speaking to Kenny in the bar, Lambert (from the episode "Vault of Death") can be seen reading a newspaper next to the jukebox.
Trivia: In the 1980s, this episode and "Operation Crash-Dive" were edited together to form the compilation film entitled "Thunderbirds to the Rescue".
Trivia: Thunderbird 3 is the only Thunderbird craft that doesn't appear in this episode, but it does get a mention during the discussion of who pilots which Thunderbird during Jeff's vacation.
Trivia: When Parker says "I would agree I have a rare talent" after breaking into the vault, look in the background and you can see Colonel Tim Casey from "Edge of Impact".
Trivia: One of the buildings in this episode is labelled "BAOC", which is an anagram of "BOAC" (British Overseas Airways Corporation). "BOAC" became British Airways in 1974.
Trivia: The pianist at the hotel is actually a reused clip of "Cass Carnaby" from the previous episode "The Cham-Cham".
Trivia: In Dr. Korda's office, you can see a statue that also appears in the Hood's temple.
Trivia: The farmer from the episode "Operation Crash-Dive" can be seen among the film crew.
Trivia: Jeremiah Tuttle (from the episode "The Impostors") can be seen as the guitarist in Sanchos' restaurant.
Pit of Peril - S1-E2
Trivia: Colonel Sweeney and his subordinate had previously appeared in "Trapped in the Sky" as Captain Hansen and his co-pilot.
Give or Take a Million - S2-E6
Trivia: The launch of Thunderbird 3 in this episode was filmed for the feature film "Thunderbirds Are Go".
Trivia: The electric drills that Virgil and Alan use to plant the explosive are the WASP pistols from "Stingray".
Trivia: Each episode's opening credit scene would feature some highlights of the episode. Gerry Anderson would later use this gimmick in "Space: 1999" and "Space Precinct".
