#23 Justice League of America: Pilot (Unaired)
In 1997 a pilot episode was commissioned for a potential Justice League of America series. The pilot was horrible, cheaply made, filled with lame mock-interviews of the Leaguers, and fortunately never aired. So how does this qualify for one of Green Lantern's brightest days? There are a couple of reasons. First, regardless of his actual appearance, this was the debut of Lantern Guy Gardner. As an example of how the creators just didn't get the characters, Guy wore the trademark double breasted vest but he lacked the bowl cut and red hair. Why didn't they just call him Hal Jordan?
The second and more important reason for making this list is that IT DID NOT AIR. Your average person doesn't know too much about the Green Lantern and this would have been a toxic introduction, forever branding him in the minds of audiences as a goofball. Take for example Guy's method for flight. He constructed a big green helicopter style whirligig. I am sorry, but that is just ludicrous (no offense to the rapper).
#25 - Justice League Unlimited: Initiation - John Stewart's new look
#24 - Batman: The Brave and the Bold: Death Race to Oblivion! - Guy Gardner's Lanternmobile
#23 - Justice League of America: Pilot - Doesn't air