The Tale of the Big Why - S1-E8
Visible crew/equipment: When Gambit is on the wing of Turner's plane, there is a close-up of Turner where a crewmember is visible in the background.
Continuity mistake: The yellow Aston Martin DBS that Gambit and Purdey give chase to at 0:09:45 transforms itself into a yellow Audi 100 Coupe at 00:15:00. Also the "P" registration mark (1975-6) on the Aston is incorrect as the marque had been discontinued in 1972.
Cat Amongst the Pigeons - S1-E5
Visible crew/equipment: When Purdey runs to Steed's front door after finding the 'Sanctuary of Wings' ring, the boom mike appears in the bottom left of frame as she calls after Steed.
The Last of the Cybernauts ...?? - S1-E3
Continuity mistake: During the car chase in the car-park, Kane's contact crashes into a purple Hillman which reappears undamaged later in the scene.
Continuity mistake: During the snooker game between Steed and Gambit, Steed plays right-handed but in the close-ups of the trick shots, the cue is held left-handed.
Cat Amongst the Pigeons - S1-E5
Continuity mistake: When Purdey and Gambit are escorting Rydercroft from his plane, the registration number is ATUC. Later, when he gets back into the plane to take off, the registration number is G-ATPN.