The Avengers.S05E02.The Fear Merchants

Executives in the ceramics industry are driven out of their minds with fear at the behest of a competitor, by the application of science.
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"The Fear Merchants" is the second episode of the fifth series of the 1960s cult British spy-fi television series The Avengers, starring Patrick Macnee and Diana Rigg, and guest starring Patrick Cargill, Brian Wilde, Annette Carell, and Garfield Morgan. It was first broadcast in the Southern region of the ITV network on Monday 16 January 1967. ABC Weekend Television, who commissioned the show for ITV, broadcast it in its own regions five days later on Saturday 21 January. The episode was directed by Gordon Flemyng, and written by Philip Levene.
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Cast
Patrick Macnee as John Steed
Diana Rigg as Emma Peel
Patrick Cargill as Pemberton
Brian Wilde as Raven
Annette Carell as Dr. Voss
Garfield Morgan as Gilbert
Andrew Keir as Crawley
Jeremy Burnham as Gordon White
Edward Burnham as Meadows
Bernard Horsfall as Fox
Ruth Trouncer as Dr. Hill
Declan Mulholland as Saunders
Phillip Ross as Hospital Attendant
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According to Television's Greatest Hits, this episode was the top-rated episode for 1967, and ranked second of all The Avengers episodes according to viewer ratings at the time it aired.