Warner Bros. announced a while back that it is planning to begin work on a TV series based on Supergirl, and instead of airing on networks such as The CW or NBC, the pilot is expected to make its appearance on CBS (of all places). The big question, however, is whether or not Supergirl will take place in the same universe as that of the Arrow and The Flash.

We've been hearing a lot of rumors lately, and the consensus right now is that no one is really sure of where Supergirl is going. It's as if Warner Bros. just outright pitched the Supergirl idea without any formal planning.

According to a nice little tidbit in the latest issue of Entertainment Weekly, there is a possibility the Supergirl TV show might take place within the same universe. The information was revealed by Greg Berlanti, the executive producer of the Arrow and The Flash.

"Later in the afternoon at his other office on the Warner Bros. lot, Berlanti meets with fellow producer Ali Adler and Oscar-winning costume designer Colleen Atwood to go over looks for their upcoming revamp of Supergirl," reports Entertainment Weekly. "The show will follow 24-year-old Kara Zor-El, Superman's cousin, and with a twist that could melt fanboy brains, Berlanti says it's possible this Supergirl could enter the worlds of Arrow and The Flash."

We're not certain how Warner Bros. plans on pulling this off since Arrow and The Flash are on The CW while Supergirl will air on CBS. However, recent rumors have made claims that Warner first pitched the idea to The CW, but the network turned down the opportunity. This could be a sign that the studio has long wanted to bring Supergirl into the same universe as the Arrow.

Combining universes across networks is a difficult task, but very much possible as long as there aren't much crossover episodes. At the moment, we could be witnessing the birth of the Justice League on the small screen, and the heroes who could one day make the cut for a possible Crisis event that is along the lines of Crisis on Infinite Earths.