This summer, fans got the news that the heroes of The CW’s four #DCTV shows would be teaming up for a four-episode crossover event—the largest crossover so far for the network.
Tim Beedle
via DC Comics
http://www.dccomics.com/blog/2016/09/29/breaking-news-dctv-heroes-team-up-to-take-on-the-dominators