Because the set for the Golgafrinchan captain's bathtub on prehistoric Earth was located out-of-the-way in the woods, there were few options on how to get the tub filled with warm water that the actor could sit in for filming. In the end, the solution was to buy a truckload of hot water from a local paper mill. When the truck arrived, it was discovered that the water was waste water from paper production, which had numerous semi-toxic chemicals in it. The actor was not told until after filming had wrapped.
The badge on the Golgafrinchan Captain's hat was later reused upside down on Rimmer's uniform in Red Dwarf (1988).
Joan Stribling Design and Art Director's Award.