The Avengers (1961 Television Series)

The Avengers was a 1961 - 1969 British television series that aired on the ITV television network in the UK, and on the ABC television network in the United States. Originally envisioned as a detective series featuring John Steed (Patrick Macnee) and David Keel (Ian Hendry), the show later incorporated many elements of the secret agent and science fiction genres (a combination often referred to as "spy-fi"). In addition to Macnee, the series starred, over the course of its run, Honor Blackman, Diana Rigg, and Linda Thorson.

The Master Minds (Season 4, Episode 6)
Steed and Mrs. Peel investigate a group of intellectuals who are using mind control to create unwitting allies in their quest to steal a nuclear missile.

The Man-Eater of Surrey Green (Season 4, Episode 11)
An alien plant takes hold in the English countryside, using its powers to mind control a group of scientists, as well as Mrs. Peel.

Return of the Cybernauts (Season 5, Episode 17)
The robotic Cybernauts return, but the scientist who controls them also has a new plan to turn humans into mindless robots using a mind control device.

Super Secret Cypher Snatch (Season 6, Episode 3)
Secrets are being leaked from Cypher Headquarters. Steed and Tara investigate and discover that the building servicing firm "Classy Glass Cleaners" has been pumping hypnotic gas into the building, placing everyone inside into a mindless trance.

Love All (Season 6, Episode 21)
Steed discovers that a publisher of romance novels is using technology to hypnotize its readers, causing them to fall in love and gladly hand over military secrets.

Stay Tuned (Season 6, Episode 22)
Steed experiences a period of "missing time" and suspects that he has been kidnapped, brainwashed, and programmed to kill someone.