<P> The first teaser for the series featured music composed by Fil Eisler, which he "threw together as an audition" within three weeks . Before production on the series began, Charles Henri Avelange had also composed and recorded music for the series, which he described as "a showcase for CBS". In July 2017, Jeff Russo was announced as composer for the series . Russo recorded the series' score with a 60 - piece orchestra . The show's main theme incorporates elements from the original Star Trek theme . </P> <P> The first episode of Star Trek: Discovery aired in a "preview broadcast" on CBS in the United States on September 24, as well as being made available with the second episode on CBS All Access . Subsequent first - run episodes, making up the first chapter of the season, will be streamed weekly on All Access through November 12 . The second chapter will begin streaming January 2018 . </P> <P> CBS Studios International licensed the series to Bell Media for broadcast in Canada, and to Netflix for another 188 countries . In Canada, the premiere was simulcast with CBS on September 24, 2017, on both the CTV Television Network and on the specialty channel Space before being streamed on CraveTV; it was also broadcast in French on the specialty channel Z . Subsequent episodes will be released through Space, Z, and CraveTV, with Space airing each episode 30 minutes before it's streamed on All Access . In the other countries, Netflix will release each episode of the series for streaming within 24 hours of its U.S. debut . This agreement also saw Bell Media and Netflix acquire all previous Star Trek series to stream in their entirety, and to broadcast on Bell Media television channels . </P> <P> The first full trailer for the series was released in May 2017 . Forbes's Merrill Barr noted that the trailer was a good sign for many who believed the series would never be released following the many production setbacks and delays, saying, "Having a legitimate trailer that can be watched over and over again brings signs of hope, particularly for fans that have been waiting over a year for this moment . Star Trek: Discovery is real, and now we have proof ." Chris Harnick of E! News described the trailer as "gorgeous" and "truly cinematic", and because of the appearances of Sarek and the Klingons in the footage, "this is the Star Trek you know and love ." Aja Romano at Vox called the trailer's visuals "sumptuous" and "modern, but still very much in keeping with the aesthetic of previous Trek series". She continued, "What gets short shrift in this trailer is the series' overarching plot...In any case, seeing the Klingons in all their combative glory feels a bit like coming home for Trek fans ." Also in May, McFarlane Toys signed a toy license deal with CBS to produce "figures, role play weapons and accessories" for Discovery . CBS Consumer Products senior vice president Veronica Hart explained that McFarlane was chosen as the first licensee for the series because of its "commitment to quality and dedication to fans". The deal will also see the company "create merchandise from the entire Star Trek universe, ranging from the classic Star Trek: The Original Series to its popular movie franchise ." The first merchandise produced under the deal are set for release in mid-2018 . </P>

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