Sci-Fi Bulletin: Exploring the Universes of SF, Fantasy, Horror and Spy-fi!

Supergirl, Arrow, The Flash and Legends of Tomorrow are set to cross over again later this year.

Arrow and Supergirl will run on Monday November 27; The Flash and Legends of Tomorrow will air the following day.

“Last year’s (crossover) was the most successful week in CW history in terms of ratings and everything,” CW President Mark Pedowitz said at the TCAs. ” We felt in this particular case we had Flash on Legends paired, so it was better to make it a two two hour movies –a miniseries- we thought this was the best way to go. We had a lot of conversations with producers and marketing people. Next year, we might go back to four nights.”

Unlike last season’s event, all four episodes will play into the shared theme.