Board Thread:Clean up Concerns/@comment-34097347-20160924191552/@comment-366087-20161017055949

AustinDR wrote: Don't know anything about Arrowverse, other than another site deemed it as being in that continuity. The current Ruling, that Supergirl is a separate continuity from Arrowverse was determined during its first season when it aired on CBS and they had to jump through legal hoops to have a crossover with The Flash airing on The CW.

The crossover episode was done via The Flash crossing from one universe into Supergirl's, thereby establishing them as two distinct universes, and a ruling was put up on the category:Arrowverse Villains page stipulating that ONLY characters which appeared in the crossover episode were to be tagged as "Arrowverse" due to interacting with an Arrowverse character.