As for the first season, CBS made the first episode of the second season Star Trek: Discovery free of charge. In the first season they broadcast "Alike Ali" on the CBS network. This year they make the premiere of the Brother season available for free on YouTube. As for the rest of the season, you will need to subscribe to CBS All Access (US) to see it.
Watch Free "Brother"
NOTE: As with all CBS videos, the above is locked by the region for the United States.
Star Trek: Discovery is available exclusively in the United States of CBS All Access. It is broadcast in Canada to Space and Streams on CraveTV. It is available to Netflix anywhere else. The second season debuted on All Access and Space on Thursday, January 17, 2019, and on Netflix January 18, 2019.
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