**Answer:**
Dark was a popular German science fiction thriller television series that aired on TV. With its complex narrative, intricate plot, and intriguing characters, it gained a worldwide following. The show delved into themes of time travel, family dynamics, and the interconnectedness of past, present, and future. Its unique storytelling structure and dark tone set it apart from other series. The show received critical acclaim for its storytelling, acting, and cinematography. Overall, Dark was a captivating TV series that left a lasting impact on its viewers.