There is a photograph of the Duchess of Royston on the wall in Cass Carnaby's dressing room.
One of the few episodes where both Alan and John were seen aboard the TB5 space station together.
Tin Tin's aircraft is named The Ladybird, the British term for a ladybug. The insect design can be glimpsed painted on the plane's exterior.
The opening scene sets an espionage like tone, both in visuals as well as the music. All things spy were in vogue at the time, across every genre of entertainment as well as in real life.
Parker is shown dressed for a fine British afternoon, in a summer suit and a traditional straw boater hat. In the next scene, he sports the very latest in Carnaby Street gentleman's attire. Wardrobe designer Elizabeth Coleman continued her fine, on trend work in this episode.