The 14th episode of the time travel sitcom It’s About Time, created by Sherwood Schwarz (I Dream Of Jeannie) and starring Frank Aletter, Jack Mullaney, and Imogene Coca, is broadcast on CBS. Gary Nelson (future director of The Black Hole) directs.
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The 71st episode of Irwin Allen’s adventure series Voyage To The Bottom Of The Sea airs on ABC, starring Richard Basehart and David Hedison. John Lupton guest stars.
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The 42nd episode of Irwin Allen’s science fiction series Lost In Space premieres on CBS, starring Guy Williams, June Lockhart, and Jonathan Harris.
French astronomer Audouin Dollfus discovers Janus, the tenth discovered natural satellite of the planet Saturn, orbiting just beyond the outer edge of Saturn’s ring. Confusion is caused when, mere days later, an American astronomer discovers another body in a near-identical orbit that cannot be reconciled with the orbit calculated for Janus. Only in the late 1970s will a theory emerge that explains the inconsistencies as the presence of two moons moving around Saturn as a co-orbital pair, occasionally swapping positions. Janus’ existence will be verified in 1980 by Voyager 1. (Janus is shown here in a 21st century Cassini photo.)
The 14th episode of Gene Roddenberry’s science fiction series Star Trek airs on NBC. Mark Lenard guest stars, though not in the familiar role of Spock’s father Sarek. This is the first episode of Star Trek to feature the Romulans. 
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BBC2 airs the 22nd episode of science fiction anthology series Out Of The Unknown. Adapted by Hugh Whitmore from a story by Larry Eisenberg, the story stars Paul Daneman and John Hollis (The Empire Strikes Back). This episode no longer exists in the BBC’s archives.
The 14th episode of Irwin Allen’s science fiction series The Time Tunnel airs on ABC, starring James Darren and Robert Colbert. Malachi Throne, Whit Bissell, and Lee Meriwether geust star.
More about The Time Tunnel in the LogBook and theLogBook.com Store
Toho releases 
The 141st episode of Doctor Who airs on the BBC. The second Doctor’s longest-running companion, Jamie McCrimmon, is introduced in this story. This episode is now missing from the BBC’s archives. (more…)
Just days after the discovery of a satellite in a near-identical orbit, U.S. Naval Observatory astronomer Richard Walker discovers Epimetheus, another natural satellite of the planet Saturn, again orbiting just beyond the outer edge of Saturn’s ring. Many of Walker’s fellow astronomers believe this is merely a second sighting of Janus, discovered mere days before, but irregularities in the computed orbits vex astronomers well into the 1970s, at which point it is conceded that the observations are best explained by two satellites in a very close orbit to one another. Epimetheus and Janus will next be spotted by Voyager 1 in 1980, conclusively proving the existence of two bodies. Epimetheus’ name won’t be made official until 1983. (Epimetheus is shown here in a 21st century Cassini photo.)
The 15th episode of the time travel sitcom It’s About Time, created by Sherwood Schwarz (I Dream Of Jeannie) and starring Frank Aletter, Jack Mullaney, and Imogene Coca, is broadcast on CBS.
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The 72nd episode of Irwin Allen’s adventure series Voyage To The Bottom Of The Sea airs on ABC, starring Richard Basehart and David Hedison. Terry Becker guest stars.
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The 43rd episode of Irwin Allen’s science fiction series Lost In Space premieres on CBS, starring Guy Williams, June Lockhart, and Jonathan Harris.
The Soviet Union launches unmanned space probe Luna 13 toward the moon, where it becomes the third space vehicle to successfully make a soft landing on the lunar surface. Larger than its Soviet predecessor, Luna 9, Luna 13 measures the temperature, radiation, and hardness of the moon’s surface, all useful information to have in advance of a manned landing. After operating on the lunar surface for four days, the Luna 13 lander’s batteries are exhausted and the mission is over.
BBC2 airs the 23rd episode of science fiction anthology series Out Of The Unknown. Written by William Trevor, the story stars Sebastian Shaw (Return Of The Jedi). This episode no longer exists in the BBC’s archives.
The 15th episode of Irwin Allen’s science fiction series The Time Tunnel airs on ABC, starring James Darren and Robert Colbert. Whit Bissell and Lee Meriwether geust star.
More about The Time Tunnel in the LogBook and theLogBook.com Store
The 142nd episode of Doctor Who airs on the BBC. The second Doctor’s longest-running companion, Jamie McCrimmon, is introduced in this story. This episode is now missing from the BBC’s archives.
This timeline entry leads to an entry covering this entire Doctor Who serial; there are plans to write new episodic entries in the future. You can support this effort!
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UK broadcaster ATV Midlands airs the 32nd episode of Gerry Anderson’s Supermarionation science fiction series Thunderbirds, featuring the voices of Shane Rimmer, David Graham, Sylvia Anderson, Ray Barrett, and Peter Dyneley. This is the final episode of the series, as well as a Christmas special.
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The 16th episode of the time travel sitcom It’s About Time, created by Sherwood Schwarz (I Dream Of Jeannie) and starring Frank Aletter, Jack Mullaney, and Imogene Coca, is broadcast on CBS.
This series is not yet chronicled in the LogBook. You could join theLogBook team and write this guide or support the webmaster’s efforts to expand the site.
The 44th episode of Irwin Allen’s science fiction series Lost In Space premieres on CBS, starring Guy Williams, June Lockhart, and Jonathan Harris. Dennis Patrick (Dark Shadows) guest stars.
The 15th episode of Gene Roddenberry’s science fiction series Star Trek airs on NBC. Bruce Mars guest stars as Kirk’s Starfleet Academy nemesis, Finnegan. (more…)
BBC2 airs the 24th episode of science fiction anthology series Out Of The Unknown. Adapted by Hugh Leonard from a story by Isaac Asimov, the story stars Ann Firbank and Bruce Boa (Astronauts). This episode no longer exists in the BBC’s archives.
The 17th episode of the spy-fi series Adam Adamant Lives! airs on BBC1, starring Gerald Harper and Juliet Harmer. Along with much of the rest of the season, the second season premiere is missing from the BBC archives.
This series is not yet chronicled in the LogBook. You could join theLogBook team and write this guide or support the webmaster’s efforts to expand the site.
The 143rd episode of Doctor Who airs on the BBC. The second Doctor’s longest-running companion, Jamie McCrimmon, is introduced in this story. This episode is now missing from the BBC’s archives.
This timeline entry leads to an entry covering this entire Doctor Who serial; there are plans to write new episodic entries in the future. You can support this effort!
Order Earl Green’s book VWORP!1 from theLogBook.com Store
The 17th episode of the time travel sitcom It’s About Time, created by Sherwood Schwarz (I Dream Of Jeannie) and starring Frank Aletter, Jack Mullaney, and Imogene Coca, is broadcast on CBS.
This series is not yet chronicled in the LogBook. You could join theLogBook team and write this guide or support the webmaster’s efforts to expand the site.
The 73rd episode of Irwin Allen’s adventure series Voyage To The Bottom Of The Sea airs on ABC, starring Richard Basehart and David Hedison. Lyle Bettger guest stars.
This series is not yet chronicled in the LogBook. You could join theLogBook team and write this guide or support the webmaster’s efforts to expand the site.
BBC2 airs the 25th episode of science fiction anthology series Out Of The Unknown. Adapted by Robert Muller from a story by Isaac Asimov, the story stars David Healy as Powell and Brian Davies as Donovan. This episode no longer exists in the BBC’s archives, and marks the end of Irene Shubik’s tenure as producer, as well as the last episode of the series to be made in black & white. The robot costumes from this story will be reused in the later Doctor Who story The Mind Robber.
The 45th episode of Irwin Allen’s science fiction series Lost In Space premieres on CBS, starring Guy Williams, June Lockhart, and Jonathan Harris.
The 16th episode of Gene Roddenberry’s science fiction series Star Trek airs on NBC. Don Marshall guest stars. This is the first Star Trek episode to show the oft-mentioned shuttlecraft. 
The 17th episode of Irwin Allen’s science fiction series The Time Tunnel airs on ABC, starring James Darren and Robert Colbert. Mako, Whit Bissell and Lee Meriwether geust star.
More about The Time Tunnel in the LogBook and theLogBook.com Store
The 18th episode of the spy-fi series Adam Adamant Lives! airs on BBC1, starring Gerald Harper and Juliet Harmer. This is one of only two second season episodes that now exist in the BBC archives.
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The 144th episode of Doctor Who airs on the BBC. The second Doctor’s longest-running companion, Jamie McCrimmon, leaves Scotland by way of the TARDIS at the end of this episode. This episode is now missing from the BBC’s archives.
This timeline entry leads to an entry covering this entire Doctor Who serial; there are plans to write new episodic entries in the future. You can support this effort!
Order Earl Green’s book VWORP!1 from theLogBook.com Store
The 18th episode of the time travel sitcom It’s About Time, created by Sherwood Schwarz (I Dream Of Jeannie) and starring Frank Aletter, Jack Mullaney, and Imogene Coca, is broadcast on CBS.
This series is not yet chronicled in the LogBook. You could join theLogBook team and write this guide or support the webmaster’s efforts to expand the site.
The 74th episode of Irwin Allen’s adventure series Voyage To The Bottom Of The Sea airs on ABC, starring Richard Basehart and David Hedison. John Van Dreelen guest stars.
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The first episode of Larry Cohen’s science fiction series The Invaders, starring Roy Thinnes and produced by Quinn Martin’s QM Productions, premieres on ABC. John Milford guest stars.
This series is not yet chronicled in the LogBook. You could join theLogBook team and write this guide or support the webmaster’s efforts to expand the site.