The legacy of Star Trek: Deep Space Nine is multifaceted, from the historic casting of the first Black series lead to its in-depth examination of war and politics. Perhaps its most important legacy from a franchise perspective is its evolved approach to storytelling. Slowly, over the seven-season run of DS9, the show pioneered serialized storytelling in the Star Trek universe. While this is the de facto approach to modern-day television, for a first-run syndicated series, it could be a major problem.
Source：https://www.cbr.com/star-trek-deep-space-nine-serialized-storytelling/
