A science teacher mysteriously dies ziplining while staffing a leadership camp for teens. But after the victim's past reveals a web of uneasy alliances and rivalries, Shepherd must cipher through a long list of suspects.

Colin Murray, Rachel Riley and Susie Dent host, with Keith Brymer Jones in Dictionary Corner, as contestants race against the clock to pit their wits against vowels, consonants and numbers. 

Returning Champion; 

The new series continues, as we follow the vibrant community who call the UK's canal network home. In Staffordshire, we meet Andy Hamblin and his cat Hugo, whose boat - Hush - is often photographed by passers-by because of its unique doorway. We join married couple Pat and Jill on sweetie boat - The Pendle Witch - as they cruise the Leeds-Liverpool canal towards a towpath sale. Rachel, James and Joe swap their four-bedroom family home in the Welsh Valleys for a 45-foot narrowboat that James has yet to see. And familiar faces Tracey and Tim have had a successful year with the Accessible Waterways Association that they launched last series, and hope to realise an accessible mooring on the network.

The new series continues, as we follow the vibrant community who call the UK's canal network home. Andy cruises towards the Llangollen for winter and stops off to see Ruth, a familiar face from series 1, who has opened a marina chandlery. Pat and Jill begin a boat makeover before Jill gets off the water and into the sky. Rachel and James shut the door on their bricks and mortar home and take the first steps towards their new adventure. And Tim and Tracey host the first Accessible Waterways Association gathering and it's an opportunity for boaters with disabilities to test the new accessible mooring that they have designed alongside the Canal and River Trust. 

The new series continues, as we follow the vibrant community who call the UK's canal network home. On the Leeds-Liverpool canal, Pat and Jill prepare for Halloween as they stock up for a towpath sale. In Thorne, South Yorkshire, Rachel and James take boat Ruby out for the first time, as neighbour Kate gives them a driving lesson. We meet mum Hannah and her teenage son George, who are planning a trip from their narrowboat home mooring in east London to celebrate George starting secondary school. And with the prototype of the accessible mooring a proven hit, the Canal and River Trust have the first one created in their workshop. 

The new series continues, as we follow the vibrant community who call the UK's canal network home. Hannah and George take a cruise through east London before mooring up near the Queen Elizabeth Olympic Park where George can visit the skate park. In South Yorkshire, Rachel, James, and son Joe have some help with their list of boat tasks, as they head closer to living the continuous-cruiser lifestyle. We meet The Three Idle Women, a folk group whose songs are based on canal life, who are launching their first album, but there is a lot of work to do first, starting with a towpath rehearsal and a soft launch on the puppet barge in Little Venice, London. And in Birmingham, Tracey and Tim gather a crowd to see the first accessible mooring being established on the towpath. 

The new series continues, as we follow the vibrant community who call the UK's canal network home. The Three Idle Women travel over the Dundas Aqueduct as they traverse the Kennet and Avon Canal, rehearsing for the launch of their new album. Photographer Hannah heads out by bike from her boat in east London to capture a familiar face - bike repair man Sam - whose looking for some images to promote his floating business. Near Doncaster, Rachael and James continue their boat renovations, as James creates a unique mural on the side of narrowboat Ruby, before they finally begin their lives as continuous cruisers. And in Birmingham, Tracey and Tim finally see their dream realised, as the Canal and River Trust and Walsall College assist with the official launch of the first accessible mooring.

The series that catches up with expats chasing their dream lives and setting up new businesses abroad returns. In Portugal, Annie and James are hoping to expand their microbrewery. But with a big beer festival on the horizon, can they compete? In Bulgaria, B&B owners Ellie and Gary battle bureaucracy to pull off a big build. And in France, a new adventure awaits unique gîte owners Colin and Kim.

Clive Myrie asks the questions in the grand final. The specialist subjects include the stage plays of Sir Tom Stoppard, the music of Led Zeppelin, penguins, and the Empire State Building.

More than 100,000 children train at swimming clubs across England, many hoping one day to compete at the Olympics. But do those dreams of gold medals come at too high a price?

An analysis of the life of German officer and physician Josef Mengele, exploring his youth and studies, his adherence to Nazism, the inhumane experiments conducted at Auschwitz and the connection between Nazism and the German academic system.

In the weeks following the bombing of Pan Am 103, the pressure for the investigation to make progress continues to mount. Heartbroken relatives of the victims arrive in Lockerbie, desperate to find their loved ones and in need of answers. The local community receives them warmly. Meanwhile, the joint Scottish-FBI investigation closes in on its first suspect. Could this individual, acting alone or for a larger terrorist organisation, be the Lockerbie bomber?

Chris helps a school counsellor explain to her brothers how being dyslexic impacts her life and makes a builder from south Wales the star of his very own musical.