Using a telescope at Mount Wilson Observatory, astronomer Seth Nicholson discovers Ananke, a tiny moon of Jupiter orbiting the huge planet at an average distance of 21 million miles and at a high inclination relative to Jupiter’s equator. Ananke is most likely a captured asteroid or the remnant of a captured asteroid, and other small Jovian moons in the same orbit may be other pieces of the captured (and shredded) body. Ananke is the first Jovian moon discovered in nearly two decades, and it will be over two more decades before another is found.
The eighth episode of ABC’s science fiction anthology series, Tales Of Tomorrow, airs on ABC, with each episode’s opening titles proclaiming that the series is produced “in cooperation with the Science-Fiction League of America”, a collective of sci-fi writers including Isaac Asimov and Theodore Sturgeon among its members. This episode stars Sidney Blackmer and Meg Mundy.
The third episode of Sam Rolfe’s western series Have Gun – Will Travel is broadcast on CBS in the United States, starring Richard Boone. The episode is written by future Star Trek creator Gene Roddenberry, a frequent writer in the series’ early seasons. 
The third episode of H.G. Wells’ The Invisible Man, based on Wells’ story, premieres on ITV; the series will be shown later in the U.S. on CBS. Deborah Watling (Doctor Who) stars.
British broadcaster ABC airs the 53rd episode of the spy-fi series The Avengers, starring Patrick Macnee and Honor Blackman. By this episode, which opens the third season, the series has moved firmly into a light-hearted spy-fi vein far removed from its original gritty formulation with two male leads. Where Steed’s sidekicks were on something of a rotation during the second season, Honor Blackman is now the series’ sole female lead.
NBC airs 
The third episode of Irwin Allen’s adventure series Voyage To The Bottom Of The Sea airs on ABC, starring Richard Basehart and David Hedison, based on Allen’s 1961 movie of the same name. Lloyd Bochner guest stars.
The 
The 32nd episode of Irwin Allen’s science fiction series Lost In Space premieres on CBS, starring Guy Williams, June Lockhart, and Jonathan Harris.
ABC broadcasts the third episode of the Filmation animated series Fantastic Voyage, based on the 
The 
ABC airs the 28th episode of Irwin Allen’s sci-fi series Land Of The Giants, starring Gary Conway, Don Matheson, Deanna Lund, and Don Marshall. Richard Anderson (The Six Million Dollar Man) and Sam Elliott guest star.
ITV airs the second episode of the mystery/spy-fi series Strange Report in the U.K., starring Anthony Quayle, Kaz Garas, and Anneke Wills (Doctor Who). (The series is an international co-production and airs in the United States on NBC.) 
ITV premieres the 
The Soviet Union launches unmanned space probe Luna 19 toward the moon, a return to orbital-only missions. Over the course of a year, Luna 19 conducts an extensive mapping campaign of the lunar surface, as well as measuring gravitational anomalies in lunar orbit.
The fourth episode of Filmation’s live-action Shazam! series airs on CBS, starring Jackson Bostwick, Michael Gray and Les Tremayne. 
The 
The 
The 38th episode of The Six Million Dollar Man is broadcast on ABC, starring Lee Majors and Richard Anderson. Chuck Connors (The Rifleman, Werewolf) guest stars.
The 15th episode of Harold Jack Bloom’s sci-fi series Project UFO airs on NBC, portraying fictionalized investigations into what the show claims are actual cases from the U.S. Air Force’s Project Blue Book investigations. Edward Winter and Caskey Swaim star. Jared Martin (The Fantastic Journey, War Of The Worlds) guest stars.
The 
The 37th episode of the live-action series based on Marvel’s comic The Incredible Hulk airs on CBS, starring Bill Bixby, Jack Colvin, and Lou Ferrigno. Nicolas Coster guest stars.
Carl Sagan’s groundbreaking science documentary series 
BBC1 premieres the 
ABC broadcasts the 
The week-long national syndication window opens for 
The national syndication window opens for 
The 