Casebook is an Australian educational documentary series produced by the 7 Network from 1966-1968. It was made with the co operation of the Australian Medical Association. Each episode usually contained 2-3 segments relating to medical advice given by a real doctor (Dr John) to patients (played by professional actors) suffering from a variety of illnesses.
One of the directors was David Cahill.
References
Casebook (TV series) Wikipedia(Text) CC BY-SA