What will be next for Mad Men?
16 February 2012 Last updated at 19:01 GMT
Over the course of four seasons the US series Mad Men has worked its way through the early 1960s.
The New York advertising industry provides the backdrop for personal and domestic dramas to be slowly played out.
Actor Jon Hamm, who plays Don Draper, has been giving away some clues about the fifth season of the show to Front Row's John Wilson.