Green Arrow show was called "
Arrow". Live, and unlike smallville, it has a plot rather than being a static soap-opera. Yes, it does have soap-opera elements, but the character has a mission, has a goal, and has a plan. And he is actively working it the whole time, rather than just trying to stay home on the farm and ignore the world around him.
Even if the characters weren't familiar, had the movies actually been good, people would have watched them and probably liked them, and maybe even discovered the comics through them. With what was done, and the way they were handled, I doubt very much if anyone wanted to discover their sources, or indeed pay much attention to them. I don't know what audience Green Hornet was made for, but Spirit and Green Lantern were strictly for comic fans.