The 34th episode of Irwin Allen’s adventure series Voyage To The Bottom Of The Sea airs on ABC, starring Richard Basehart and David Hedison. Ina Balin guest stars.
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British broadcaster ABC airs the 79th episode of the spy-fi series The Avengers, starring Patrick Macnee and Diana Rigg. This is the premiere of the series’ fourth season, and the first season to be shot on film rather than videotape.
The third episode of Irwin Allen’s science fiction series Lost In Space premieres on CBS, starring Guy Williams, June Lockhart, and Jonathan Harris.
UK broadcaster ATV Midlands premieres the first episode of Gerry Anderson’s science fiction series Thunderbirds, featuring the voices of Shane Rimmer, David Graham, Sylvia Anderson, Ray Barrett, and Peter Dyneley. The series is filmed with puppets on detailed miniature sets, with “exteriors” involving equally detailed miniature models a system Anderson refers to as “Supermarionation”, also used on such past series as Supercar, Fireball XL5, and Stingray.
The 85th episode of Doctor Who airs on the BBC. This is part one of the story now collectively known as 
The 86th episode of Doctor Who airs on the BBC. This is 
The 87th episode of Doctor Who airs on the BBC. This is part one of the story now collectively known as