Dixon of Dock Green was a popular BBC television series, which ran from 1955 to 1976.
The main character, PC George Dixon, played by Jack Warner, was an old-style British "bobby" (a policeman). The character had first appeared in a 1950 British film, The Blue Lamp, in which he was shot and killed by a criminal played by Dirk Bogarde. However, it was decided to bring him back to life for a television series, which was written by Ted Willis.
Each episode started with Dixon speaking directly to the camera. He always began with the greeting, "Good evening, all" and a salute. By the end of the series, Jack Warner was quite elderly, and George Dixon had been promoted to sergeant and given a desk job. In the final series, made when Warner was eighty, Dixon had retired from the police.