A short scene in which two of the robot clowns unload the newly-repaired Bus Conductor from the hearse and the Bus Conductor then walks back to the Bus was moved from Part Three to Part Four at the last minute. This is why Dean Hollingsworth is credited even though he does not appear.
In the original script, Bellboy was to be haggard and white-haired, implying that he had suffered electric shock treatment, but this was dropped on recording. The script also indicated that he should be lashed to a kite, not a workbench.
This episode was watched by 4.8 million viewers on its original transmission.