Giorgos Papastefanou (Greek: Γιώργος Παπαστεφάνου) is a radio and television producer, journalist, lyricist and presenter. In February 1960, he began working at ERT radio as an apprentice. His first series of shows was entitled "At 11 pm, every Monday", while "Good evening, Mr. Edison" is considered his best-known show and lasted sixteen years, starting in May 1977.