The Twilight Zone is a media franchise created by Rod Serling. The genre for the series is rather unclear but many of the episodes contain themes of psychological thriller, sci-fi, fantasy, science fiction with twists and a moral at the end of each episode. The Twilight Zone became a revolutionary success as it introduced science fiction and fantasy tropes. The success has led to numerous spin-offs, merchandise, books, and even an attraction at Disney World. Twilight Zone is ranked the 5th best TV series according to TV Guide.