Continuity mistake: When Steed, Mrs Peel and their travelling companion Mr Smallwood arrive at the pub, it is pitch black. However, when Smallwood leaves a few minutes later to go and visit his brother, it is fairly light again. All subsequent shots of him outside continue to be well lit, whilst in the shots looking out from the pub it is dark.
Too Many Christmas Trees - S4-E13
Continuity mistake: When Steed and Emma are driving to the estate, the car's windscreen keeps disappearing. It's there in full shots, gone in close-ups, and reappears again every time we cut back to a long shot. (00:10:30)
Continuity mistake: Mrs. Peel is nibbling at a bunch of grapes. Every time the shot cuts to full, there are more grapes on the stem than in the close-ups. (00:35:30)
Continuity mistake: Steed tosses his opponent over his shoulder during the scuffle. The man lands on his back with his right hand extended over his head. But when the shot cuts to a different angle, both his arms are instantly down at his sides instead. (00:38:25)
Continuity mistake: Georgie's wig, which she'd pulled off and placed over the flowers on the mirrored stand, either changes position or disappears altogether during Steed's fight with Ivanov. (00:40:55)
Continuity mistake: Jackson plants an explosive device in the 12th green cup while Mrs. Peel is watching through the periscope. He doesn't pick it up again, but when Reed looks, Jackson is still holding the bomb. (00:44:00)
Continuity mistake: The cigarette lighter Robinson uses to set the incriminating papers alight disappears from the desk as he makes his phone call. (00:21:30)
