A TV series is a collection of related episodes that tell a story or explore a theme over time. These episodes are typically broadcast on television or streamed online, and they can vary in length, format, and genre. Common genres include drama, comedy, and science fiction, with each series often featuring a set of main characters and a storyline that develops throughout the episodes. TV series can be produced for different audiences, including children, teens, and adults. They may be created by various production companies and can be based on original ideas or adapted from books, movies, or other media. Popular examples of TV series include Friends, Game of Thrones, and Stranger Things.