As of this fall TV season, there will be five series in the Arrowverse: Arrow, The Flash, Supergirl, DC's Legends of Tomorrow and the upcoming Batwoman. But what if the Arrowverse wasn't really a thing? More precisely, what if it wasn't its own thing? What if the Arrowverse was just a small cog in a giant TV universe that encompassed hundreds and hundreds of TV shows, including the Star Trek and NCIS franchises?
Your mind would be blown, yes?
Well, get ready.
According to a theory that's been extensively argued and plotted out by the likes of the Tommy Westphall Universe and the late writer Dwayne McDuffie, hundreds and hundreds of TV shows can be linked back to a single show and a single character: St. Elsewhere's Tommy Westphall.
St. what? Tommy who?
Watch our video below for all the mind-blowing details.