The television series LOST initiated a wide-ranging academic debate which centered on its narrative and temporal complexity, while also addressing the massive expansion into other media and consequently crossing established genre categories. This expansion poses the essential question about the status of the original medium (television) within recent multiple media configurations. Can LOST be regarded as a symptom of television in the process of media change? What is the relation between LOST's temporality and that of television in general? And how can LOST be understood as a phenomenon of mediatized worlds? The contributions in this book examine these questions. The book's editors are members of the project "TV Series as Reflection and Projection of Change," which is part of the DFG Priority Program 1505: "Mediatized Worlds." (Series: Medien'welten. Braunschweiger Schriften zur Medienkultur - Vol. 19)