“Crisis on Earth-X” is the fourth annual Arrowverse crossover event, featuring episodes of the live-action television series Supergirl, Arrow, The Flash, and Legends of Tomorrow on The CW. The crossover began on November 27, 2017 with Supergirl and Arrow, and concluded on November 28 with The Flash and Legends of Tomorrow. “Crisis on Earth-X” sees Barry Allen and Iris West’s friends come to Central City for their wedding, only to be interrupted when villains from Earth-X disrupt the proceedings. For more visit…. Crisis on Earth-X – Wikipedia

I am a huge geek and this TV crossover is something I really enjoyed. The action, effects and production values were terrific. Outstanding acting by all the DC Comics TV heroes were great! I also appreciate the way the actors played both hero and villain in this story. I could go for this sort of thing again.