The Documentary

Gregoire is an ex garage mechanic whose mission in life is to help people in Benin, West Africa, with mental health problems who may otherwise be chained up in the spare room. With family approval he takes patients to his treatment centres, he cuts off their chains allowing them space and giving them help. Gregoire's story and the attitudes that coalesce around it unfold against a backdrop of traditional healers, Western trained psychiatrists, ethnopsychiatry, Evangelical missionary work, Western attitudes to Africa and African attitudes to the West, and government ministries for whom mental health is a low and cash strapped priority.

Simon Maybin spends time with daters in New York, Delhi and Nairobi trying to understand how dating apps technology is changing the way people find romance across the world.

There’s an American saying: “Anyone can become president.” And in the 2016 election they've been trying to prove it. PJ O’Rourke is on the campaign trail in New Hampshire.

Cassandro is no ordinary Mexican wrestler. He is an exotico - or drag queen - who wears long Liberace gowns, sequins and flamboyant make-up. Over an extraordinary 27-year-career, Cassandro has won two championship belts and pioneered the idea that a Mexican wrestler can be openly gay.

Gabriel Gatehouse returns to Libya in search of Colonel Gaddafi’s golden gun, which was seized by rebels when the dictator was captured and killed more than four years ago.

The road to the White House requires stamina and plenty of money. Economist and US Citizen, Linda Yueh, makes a hypothetical run for Congress in the 5th district of Virgina, to find out why it costs so much money to run for office and the increasing importance of the internet in a campaign. On the way she gathers a campaign team, meets her voters and learns about the importance of pizza in politics.

Mukul Devichand and Mike Wendling travel around the United States, talking to Black Lives Matter activists, the parents of young black men shot by police, civil rights elders like the Rev. Jesse Jackson, and police officials. In an election year that will be crucial to the country’s future, can Black Lives Matter change America?

Lipika Pelham investigates a marriage between two Bengali women, and asks what this extraordinary love story says about attitudes to sexuality in this conservative nation.

Music teacher Francesco Lotoro resurrects the music of Holocaust victims, with the help of the BBC Philharmonic Orchestra. For the past few decades Francesco has been collecting music written in concentration camps from World War Two. Working closely with composer Adam Gorb, together they pick through an archive of 8000 pieces, much of which has never been heard.

As the Sustainable Development Goals replace the Millennium Development Goals in January, Mike Wooldridge asks what are the realistic prospects for eradicating poverty by 2030? Can such strategies really "leave no one behind"?

Assignment reveals secret evidence of match fixing in tennis and investigates claims that sport's governing bodies have failed to act on repeated warnings about suspect players. The programme has seen confidential documents which reveal how some were linked to gambling syndicates in Russia and Italy which won hundreds of thousands of pounds betting on matches they played in. A number of those who have been repeatedly flagged on fixing lists passed to the game's Tennis Integrity Unit have continued to attract highly suspicious gambling activity. Reporter Simon Cox also has an exclusive interview with one of the most high profile players to be banned for match fixing who says the problem is widespread in the sport. Reporter Simon Cox Producer Paul Grant

Alla Kravchuk, the daughter of two former employees at the power station, returns to the nearby town of Pripyat. Now a world famous ghost town with trees growing through the once neat concrete squares and streets, it used to be her hometown. As well as an emotional journey back, Alla also talks to other people dealing with the aftermath of the Chernobyl disaster.

Behzad Bolour considers the music and influence of the British singer who died of cancer on 11 January 2016. We hear Bowie’s music, from people who helped him make it and from the man himself. The programme assesses the lasting impact on music, fashion, teenage culture and on attitudes to gender, of the boy from south London.

After the terror attacks in Paris, the world’s attention turned to an inner-city district of the Belgian capital, Brussels, where several of the attackers came from. Molenbeek has been notorious for many years as a breeding-ground for Islamist extremism – and the Belgian government vowed to “clean it up”. But do the authorities really have any plan to prevent the radicalisation of young Belgians? Tim Whewell has been travelling back and forth to Brussels since the Paris attacks to talk to local people as they hold up a mirror to themselves and search for explanations – and attempt to have a dialogue with a sometimes dysfunctional state.

Alla Kravchuk, the daughter of a former Chernobyl engineer, returns to her father's workplace as the huge mobile Sarcophagus built to cover the damaged reactor nears completion. Can the site of the Chernobyl nuclear disaster in April 1986 be made safe without risking the health of those involved it the task?

Despite both liberal and conservative reforms in different countries being hailed as the answer to stamping out prostitution, Europe seems to be losing the battle against sex trafficking. Why do these countries, which work successfully together against other crimes, struggle to combat sexual exploitation and forced prostitution?

Brazil is in trouble. Confronted with a massive downturn in the economy, its currency the Real has crashed, while its political class sinks in a quagmire of corruption allegations linked to the state oil company, Petrobras. But sleaze isn’t only the preserve of Brazil’s privileged, moneyed elite. In the northern state of Maranhao, a 25 year old former mayor is accused of skimming the budget of the municipality of Bom Jardim. Lidiane Leite – with a prolific presence on social-media - gained notoriety after it was revealed she ran council business remotely using WhatsApp. Prosecutors are investigating ten people and a potential fraud of $4 million. Meanwhile in Maranhao’s state capital, Sao Luis, a Governor with just a year in post, is attempting to bring a new broom to one of Brazil’s poorest regions – Flavio Dino claims to have cut expenses by thousands of Reals just by removing luxury items like seafood and champagne from state banquet menus. Linda Pressly reports from one of Brazil’s least known region

Life as a refugee after fleeing the war in Syria to make a new life in Lebanon

Conductor Mario Tronco arrived in Rome from Sicily in 2002 and was immediately fascinated by the multi-ethnic Piazza Vittorio in the heart of the historical Esquiline district. Fascinated by the sounds and languages that, like music, rise through the courtyards outside his windows he dreamed of having an orchestra which would bring together all these sounds. This is the extraordinary story of the Orchestra di Piazza Vittorio.

Having arrived in Germany, the Dhnie family's dramatic journey to their new home may be over, but the difficulties of adjusting to a new life are just beginning.