Inside the Merchant

From underwater retreats to treetop cabins, this series explores the world's hidden hotels.

Michael Portillo charts the War of Independence in Ireland, following the journey from the Peace Conference in Versailles to the historic ceasefire in 1921.

Travelogue of England, Ireland and Wales, presented by Billy Connolly, including clips from his stand-up performances.

Over the 1980s and 1990s Dublin transformed from a recession-blighted backwater to one of the wealthiest cities in Europe. As its fortunes changed so did those of its criminals, who began selling heroin, ecstasy and cocaine. Dublin Narcos tells the story of the rise in addiction, violence and organised crime which persists to this day, with first hand testimony from the kingpins and cops to the ravers and users. We also hear from the fearless journalists whose attempts at exposing the drugs barons led to the death of one of their bravest, Veronica Guerin.

A look at 15 of Ireland's National Historic Properties - a collection of castles, country houses, memorial sites and gardens, owned by the State and managed by the Office of Public Works.

Ardal O'Hanlon goes on a fascinating journey around the islands of Ireland, unearthing the history, observing the wildlife and meeting the islanders trying to live sustainably within their extraordinary environment.

Ireland’s Deep Atlantic sees underwater cameraman Ken O’Sullivan embark on a series of voyages out into the open North Atlantic in search of large whales, sharks and cold water coral reefs 3,000 down on Ireland’s deep sea bed. The two-part series will document many of these creatures’ behaviour for the first time in any TV programme and investigate the health of our deep Atlantic waters.

This warm and entertaining four-part observational documentary series has unprecedented access behind the scenes to staff and guests at the 5-star London Hilton on Park Lane Hotel.

Castles are the powerhouses that dot across our islands. History Hit’s Matt Lewis discovers Irish castles, from ancient high points to Norman keeps to medieval citadels.

John Creedon is hitting the road on a journey to explore how music has shaped the identity of Ireland and the profound impact music has on Irish culture.

Erik Haag and Lotta Lundgren embark on a journey to visit the world's least appreciated hotels and restaurants - the places with zero stars.

An exclusive five-star peek behind the doors of the luxury London hotel.

Life at the Rio Park hotel in the Spanish resort

Follow a unique, personal journey along one of the most spectacular coastlines in the world featuring the wildlife and wild places that make it so special. Emmy Award-winning wildlife cameraman, Colin Stafford-Johnson, takes viewers on an authored odyssey along Ireland’s rugged Atlantic coast.

The year is 1993. The UK and Ireland are swept up in electrifying boy band mania. Across Dublin’s clubs, bars and schools, a feverish hunt begins, to find the next musical sensation. In the era before tv talent shows ruled, hundreds vied for stardom, but only five working-class Dubliners would have the luck to be plucked from obscurity and be thrust into the global spotlight. It’s here, we begin our story.

The Hotel is a fly-on-the-wall British television documentary series which has ran for three series consisting of 25 episodes. It is produced by Dragonfly TV and Film and is broadcast on Channel 4. The series is filmed using fixed cameras positioned in several locations around the complex rather than using a camera crew. Series one was filmed at the Damson Dene Hotel in England's Lake District over five weeks in the summer of 2010. The second and third series were filmed at the Grosvenor Hotel in Torquay, Devon, owned by manager Mark Jenkins who became something of a cult character as a result of the show.

Eoin Warner sails a 140-year-old Galway Hooker out into the Atlantic to showcase the extraordinary wild magic of Ireland's western islands, from Basking Sharks off Inishtrahull, to White Tailed Eagle off the Cork coast.

Ireland is a very different place, seen from above. Looking down, the secrets of our natural landscape, architecture, history and human experience come to light in new and unexpected ways. The hidden stories, memories and the mythologies of a nation, written into the very landscape itself. Filmed exclusively from on high using the latest drone technology, this 2 x 1 hour documentary series showcase Ireland, its splendours and its secrets like never before.

In this two-part series, veteran broadcaster Cathal O'Shannon sets out on a journey across three continents to uncover the true story of Ireland's Nazis.

Giles Coren and Monica Galetti travel the globe visiting some of the world's most incredible hotels. They go beyond the lobby to see the areas that the public never see and roll up their sleeves to work alongside staff.