Tonight they covered three topics.These were the mutilation of Female genitalia in Africa,Mental illness and the Cuban Missile crisis.All three subjects were handled well.However the scriptwriters let themselves down by showing Trixie and the dentist at the side of a lake on the bonnet of his sports car on a summer's evening,the fact was that the Cuban missile crisis took place in October 1962.
Play it on IPlayer. At 41:39, when he gets off the car bonnet, you get a glimpse of the air-scoop on the bonnet. It has to be a Healey; none of the other suggestions has this scoop.