 Broadcast live, this was the first BBC Drama to be recorded onto  film via the telerecording or kinoscope process. Telerecordings  were made by filming the image off a specially designed TV screen  with a film camera (either 16mm or 35mm.) Unfortunately, the results  were judged to be unsatisfactory, and only the first two episodes  were recorded, the rest being broadcast live. Because of this, only  the first two episodes were preserved.