Stingray

Set in the 2060s, the series follows the exploits of the World Aquanaut Security Patrol (WASP), an organisation responsible for policing the Earth's oceans. The WASP's flagship is Stingray, a combat submarine crewed by Captain Troy Tempest, navigator Lieutenant "Phones" and Marina, a mute young woman from under the sea. Stingray's adventures bring it into contact with various underwater civilisations, some friendly and others hostile, as well as strange natural phenomena.

In preparation for the series, APF moved to larger studios that it would continue to occupy for the remainder of the 1960s. Filmed on a budget of £1 million, Stingray was the first British TV series to be made entirely in colour, a move intended to increase its appeal to the lucrative American market. The underwater sequences were filmed "dry" by shooting the sets through thin aquaria, while surface shots were filmed on water tanks incorporating lowered back walls to create artificial horizons. Stingray was the first Supermarionation series whose puppet characters had interchangeable heads showing a range of facial expressions.

Stingray was originally broadcast on the ITV network in the United Kingdom and in syndication in North America. The series has drawn a largely positive response from commentators, some of whom have compared its premise to the Cold War.