DC Entertainment CEO Geoff Johns has taken to Instagram to give a tease in the form of an integrated logo, while fans of TV Series The Flash and Arrow are anticipating to the crossover episodes which will air in December.

TV Line has also provides some clarification abut the schedule and format of the two hous Flash/Arrow crossover. Apparently, it will be aired over two successive nights. Both series will be aired their crossover episodes in the same week in their usual time slots. The Flash will go first on December 2, Tuesday at 8pm EST, entitled Flash vs Arrow, while Arrow follows on December 3, Wednesday, with the working title The Brave And The Bold.

The pitch of the two series has already began to change, with Arrow pursuing a little more gritty and grounded approach and The Flash is taking on super powered villains like Multiplex and Weather Wizard and Fantastical elements. What will be the fight scenes of the two worlds mean in the crossover? What happens on The Flash and the way Arrow's fight scenes are shot, The Flash actor, Grant Gusin explains to IGN,

"When [Arrow] shoot action sequences, pretty much what you see is what you get and they're really doing everything. We do a lot of plate shots that are empty shots of the area we're going to be in and then they're putting us in later in post. I do a lot of the fighting. I don't have to do it full speed and then they ramp it up and a lot of people have to freeze and I keep moving. Then I have to clear frame and step back into frame. It's really tedious stuff that we have to do. On theirs, they learn fight choreography and they shoot it from the perfect angles and what you see is what you get." Fans who don't know what to expect from the fun universe-mashup, the producers revealed that they will reveal a major secret about Oliver Queen.