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After 14 decades centre stage the Manchester Town Hall is in urgent need of repair. Now a dedicated team are working hard to do this Architectural giant justice.

The Victorian London sewer system is getting a 21st century upgrade. Machines bore a network of tunnels linking Bazalgette's old sewer network to the Tideway Super-Sewer.

A 1970s Bond Bug three-wheeler divides opinion among Mathewsons customers, while a retired engineer reluctantly auctions off his father's treasured 60s Jaguar Mark 2.

Mathewsons agree to sell a vintage threshing machine and collection of tractors, but extracting them from a Yorkshire farm proves a bigger job than anticipated.

Charting the evolution of Auschwitz concentration camp and the mentality of its perpetrators. This episode looks at the camp's beginnings.

Piers Secunda uncovers the hidden history of Alderney, to reveal new evidence of atrocities committed by the Nazis on British soil during World War two.

Fiona Bruce and the team visit Dulwich Art Gallery in south London. Items brought in for appraisal include one of the most valuable paintings seen on the programme.

Fiona Bruce presents the second of two programmes from Dulwich Picture Gallery in south London, where items include an early illustration by Heath Robinson.

Dave goes to Wales to bag a Sierra Cosworth, a sought-after car in the bidding market. Dad Derek gets his hands on a more sedate 1926 Standard Tourer.

Derek heads to Suffolk to collect two Bentleys with a majestic pedigree; Cynthia a stunning 1963 S3 and Harry, a 1965 Continental.

Charting the evolution of Auschwitz concentration camp and the mentality of its perpetrators. This episode looks at the camp's beginnings.

Piers Secunda uncovers the hidden history of Alderney, to reveal new evidence of atrocities committed by the Nazis on British soil during World War two.

How air-breathing mammals have found remarkable ways to overcome the many challenges of a life in water, from freshwater jungle ponds to the dark depths of the open ocean.

From ice-covered seas to snow-capped mountains, mammals have conquered the cold, living in the harshest places on earth thanks to their intelligence and adaptations.

The festive season falls upon the inmates of Slade and finds them planning an escape. But Fletch plans to spend some time in the infirmary.

Comedy legend Ronnie Barker stars as Fletch in this Christmas special. Fletcher plans some festive spirit at Slade in the form of his very own homemade liquor.

David Attenborough narrates as New Guinean naturalists embark on a gruelling expedition to find ten birds-of-paradise, deep in the heart of the rainforest.