Doom Patrol is an American television series initially produced for the DC Universe streaming service, with international distribution via Netflix. The series was created by Jeremy Carver and began as a spin-off of the Titans series, which premiered in late 2018. While it began on February 15, 2019 as a DC Universe original, it shifted to HBO Max for its second season the following year, where it now streams exclusively.
This world, and the characters that live in it, made a cameo appearance in the Arrowverse crossover event Crisis on Infinite Earths, according to which Doom Patrol takes place on Earth-21.
This cameo also confirms that Doom Patrol, while it may have been before, is no longer a part of the Titans continuity, as that same crossover confirms that series to be set on Earth-9, a similar but altogether different world.
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