From www.screenrant.com:
"While single-season miniseries like Watchmen are perfect in the binge-watching era, viewers also have to thank important TV classics like Roots, too.
Somewhere between the confined storytelling of movies and the ongoing serialized narratives of a regular television show, there is the miniseries format. Miniseries have the episodic structure of TV series, but only last for a single season. Their stories are told from start to finish within the same run of episodes.
Miniseries are ideal for TV viewing in the streaming age, because a lot of them can be binge-watched in a day or, at a push, over the course of a rainy weekend. Some of the best work in TV history — performances, writing, directing etc. — has been done in limited series."5