Star Trek: The Original Series (Betamax)
was released on the Betamax format in the US, UK, and Australia throughout the 1980s.

US releases
In early 1980, directly pursuant the premiere of , Paramount Home Entertainment (then known as Paramount Home Video) released ten selected episodes on the new VHS and Betamax home media formats in the United States, in five volumes of two episodes each as part of their "Television Classics" collection: /, /, /, /, and /.   Released in conjuncture, or rather as appetizers for the in October released The Motion Picture videotape formats, they together are as such the earliest known official (thereby discounting any and all possible previous and illegal so-called "s", Original Series "blooper reels" being a prime example, and including the prior Super 8 releases) Star Trek releases in either format, or in any home media format for that matter. A bit puzzling was, that unlike its Motion Picture releases, Paramount did not endow the Original Series releases with catalog numbers or rating indicators. 

It was these tapes that very shortly thereafter turned up as the first Star Trek productions in the VHS/Betamax rental circuit. In mid-1979, Paramount Home Video hammered out a deal with photo developer/video rental outlet  to release thirty-six titles of their backlog catalog on the new home media formats for the rental circuit, who started to do so from December 1979 onward, thereby becoming one of the very first such rental companies.  From March 1980 onward, Paramount gradually expanded the original agreement to 131 titles, and it was only after that occasion that all six available Star Trek videotape titles were added to Fotomat's rental catalog. Fotomat had the Paramount introductory logos, disclaimers, and credits on the rental tapes, the ones normally seen prior to the feature presentation, replaced with their own.  The tapes were additionally packaged in simple die-cut silver cases with black markings and the Fotomat logo on the case. The labels were black with white text. At the time, a tape could be either be rented for US$12, or, later, for those customers who had missed out on the initial chance to acquire the Paramount tapes, purchased for a price in the US$40-$70 range, both rather steep for that era.  Ever since, Star Trek has been a staple in the rental circuit, until Betamax tapes were phased out in the late-1980s and early 1990s, to be followed by the VHS tapes over a decade later.

A further one-off Betamax/VHS release of the episode  took place in  under the Paramount Gateway Video label, coinciding with the theatrical release of . A complete release of the series eventually followed, starting in . Paramount issued episodes in batches (or Groups as they called them) every few months in broadcast order (though the tapes were numbered in production order). Each tape contained a single episode and each Group had around ten episodes each. Both parts of "The Menagerie" were issued on a single tape. These releases concluded in  with the release of Groups 7 and 8, which featured the remaining eighteen episodes. Some of these later episodes were released in both in Betamax-sized boxes and VHS-sized boxes with a "Beta" sticker and appropriate ISBN barcode added.

 was released twice. The first had the black and white scenes from Gene Roddenberry's copy of the original episode and was released in . Following the discovery of the missing color scenes, an "All-Color Collector's Edition" was released in .

Box sets and other collections

UK releases
A few Betamax tapes were issued in the UK by CIC Video and other labels in the early 1980s. All of these releases used packaging identical to the VHS releases with sometimes only a sticker being placed on the cover and spine to tell them apart.

Australian releases
At least one rental tape was released in Australia in  by CIC-Taft Home Video.

Footnotes

Betamax releases