"The Flash" has opened the Multiverse door, and with this, any number of wonderful possibilities await: this particular crossover being one of its imaginative, anything-goes results. (A "Flash" prequel to the installment will air the following night on CW.) Still, that a character from one network can zoom onto another (regardless of the obvious Berlanti/DC/WB connections) is historic. It also generates the same excitement that I experienced as a kid when Batman/Robin and Green Hornet/Kato teamed, or gosh, when the legendary Roy Rogers guest starred on "Wonder Woman".
Promotion for the Flash/Supergirl episode has leaned heavily upon the popular '70s jumbo-sized comic where Flash and Superman race for charity (an issue I still have, I might add), but this particular meeting will focus mainly on Allen helping Danvers combat the cunning combo of Silver Banshee (Italia Ricci) and Livewire (Brit Morgan).
This merger is truly something to get excited about and is as significant as any other live-action, superhero team-up this year. I hope beyond hope it leads to more such televised crossovers in the near future. One really can't beat this kind of endearing fun!!!