Actor Peter Falk as ‘Columbo’ (NBC). American detective mystery series “Columbo”, premieres on NBC Television, September 15, 1971. The show popularized the inverted detective story format. Almost every episode began by showing the commission of the crime and its perpetrator. The series has no “whodunit” element. The plot mainly revolves around how the perpetrator, whose identity is already known to the audience, will finally be caught and exposed.