Dixon of Dock Green was an extremely popular British police television series that began in 1955 and ended in 1976. The title character, PC (later Sgt) George Dixon, appeared in a scene towards the end of the final episode of Ashes to Ashes, in which one of Dixon's closing monologues from Dixon of Dock Green was recycled for the final scene of Ashes to Ashes. Like The Black and Blue Lamp, characters in Ashes to Ashes and its predecessor, Life on Mars, were seemingly sent into different eras of policing. Moreover, Dixon's 'resurrection' for Dixon of Dock Green, after having been killed in The Blue Lamp, parallels the stories of the principal characters in Life on Mars and Ashes to Ashes, having been explained in the final episode. Eventually, as the programme entered the 1970s, it was deemed out of touch with the times, due to the arrival of more realistic police series, showing questionable morality and casual violence by officers, such as The Sweeney.