he Signalman is a 1976 BBC television adaptation of "The Signal-Man", an 1866 short story by Charles Dickens. The story was adapted by Andrew Davies as the BBC's sixth Ghost Story for Christmas, with Denholm Elliott starring as the signalman and Bernard Lloyd as the traveller, an unnamed character who acts as a plot device in place of the short story's narrator. It was the first of the series not to be an adaptation of an M.R. James story, and the last adaptation of an existing story. The production was directed by Lawrence Gordon Clark and filmed on the Severn Valley Railway.

Overview from themoviedb.org