BBC Four Today

Shedding light on spirit-pleasing rituals among the Kamayura People of Brazil, and the daunting climb made by worshippers in Tigray, Ethiopia

Tom learns Margo has been keeping appointments at a mysterious address and immediately leaps to the conclusion that she is having an affair. Comedy, starring Richard Briers

Hacker decides to inform the prime minister of British arms sales to Italian terrorists, forcing Sir Humphrey to launch a frantic damage-limitation exercise. Paul Eddington stars

Harry the signalman has fattened up a lovely turkey in time for Christmas, but the turkey seems to have other plans. Comedy, starring Su Pollard

Mainwaring and Wilson decide to recruit women into the platoon to take care of the less demanding tasks, but the captain loses his heart to an attractive widow

Denholm Elliott stars in this adaptation of Charles Dickens' ghost story about a lonely signalman haunted by a spectral figure

Drama-documentary examining the death of banker Thomas Briggs in July 1864, which was the first murder to be committed on a British train. Narrated by Toby Jones

Documentary exploring the popularity of train replicas, and how what started out as an adult obsession with model railways became the iconic toy of 1950s and 1960s childhood

Looking at the story of the diesel engine - a 19th-century invention that is the hidden powerhouse behind the globalised world and is now indispensable

Drama-documentary examining the death of banker Thomas Briggs in July 1864, which was the first murder to be committed on a British train. Narrated by Toby Jones

Shedding light on spirit-pleasing rituals among the Kamayura People of Brazil, and the daunting climb made by worshippers in Tigray, Ethiopia