"A. B. and C." is an episode of the British science fiction-allegorical series, The Prisoner. It originally aired in the UK on ITV on 13 October 1967 and was first broadcast in the United States on CBS on 22 June 1968.
The introductory paragraph uses material from the Wikipedia article "A. B. and C." as of 17 Sep 2018, which is released under the Creative Commons Attribution-Share-Alike License 3.0.