Visible crew/equipment: As Stan drives off after demolishing the telephone box and bus shelter the camera lights are reflected in the back window of the bus.
On the Buses (1971)
1 visible crew/equipment mistake - chronological order
Continuity mistake: In the last scene, when Stan boards his bus inside the depot, the registration number is "WNO476" but, as soon as he drives out the front entrance, it changes to "VNO857".