Babylon 5 had to introduce a new lead character in season 2, which radically altered the trajectory of the sci-fi show. Babylon 5 was an early example of the long-form storytelling that has become commonplace in modern television. Series creator J. Michael Straczynski started the show with a clear vision in mind for the overall storyline, which was largely realized by the time the show concluded with season 5. However, the realities of production meant that some elements of the show had to be changed.
