The PBS television series 'Frontline' is an investigative journalism program that has been airing since 1983. It is produced by the Public Broadcasting Service (PBS) and is known for its in-depth reporting on a wide range of topics, from politics to culture. The show has won numerous awards, including multiple Emmy Awards and Peabody Awards. The term 'Frontline' is often used to refer to the frontline of a battle or conflict, which is fitting for the show's focus on uncovering the truth behind important issues.