"Crisis on Infinite Earths" has been referenced several times in the various television series that comprise the Arrowverse, starting with the first episode of "The Flash" which aired in October 2014. It features a newspaper from 2024 that reads "Flash Missing, Vanishes in Crisis". Grant Gustin, who plays the Flash on the show, has said he thinks the goal of the series is to reach "Crisis on Infinite Earths": "Obviously we'd have to go, I think 10 years to reach that, so there's a possibility for sure. It'll be fun to get there." The concept of a multiverse has been explored several times throughout the history of the franchise. Talking in 2014, Geoff Johns, when discussing the difference between the DC Extended Universe and the Marvel Cinematic Universe, said "We look at it as the multiverse. We have our TV universe and our film universe, but they all co-exist. For us, creatively, it's about allowing everyone to make the best possible product, to tell the best story, to do the best world. Everyone has a vision and you really want to let the visions shine through ... It's just a different approach." The storyline inspired the 2019 Arrowverse crossover, also titled "Crisis on Infinite Earths", with the original date seen in the pilot episode of "The Flash" having been moved up by five years as a side effect of time travel.