Nope, even allowing for your sarcasm you really don't understand. The Event IS original -- in its particular combination of pre-existing story tropes and character elements. There is no series to which The Event is precisely analogous. None. The whole game of "Oh, I see a little bit of Lost, a pinch of 24, a tad of Invasion, a smidgen of FlashForward" is one that can be played with literally anything on TV. Take Lost for example --- elements from Twin Peaks, The X-Files, and even lame 1960's sitcom Gilligan's Island are all there.