BBC First

The view from above reveals a derelict complex of pod-like structures with seemingly alien origins; a bewildering concrete construction in the mountains of Bosnia; a puzzling collection of out of place shapes discarded in the wilds of Greenland.

Justin Moorhouse, Emmanuel Sonubi and Holly Walsh join.

Sandi Toksvig is joined by Maisie Adam, Daliso Chaponda, Jack Dee and Alan Davies for a look at some underthings.

Sandi Toksvig goes to university with Guz Khan, Joe Lycett, Morgana Robinson and Alan Davies.

Sandi Toksvig takes a look at upbringing with Sally Phillips, Josh Pugh, Aaron Simmonds and Alan Davies.

Zoe Lyons, Dan Tiernan, and Josh Widdicombe join Sandi.

Sandi Toksvig joins Bridget Christie, Rosie Jones, Cariad Lloyd and Alan Davies to find out about Ulex and other obscure U words.

Sandi Toksvig hosts as "QI" goes voyaging with Nabil Abdulrashid, Joe Lycett, Lou Sanders and Alan Davies.

Sandi Toksvig gets vocal with Ed Byrne, Jimmy Carr, Judi Love and Alan Davies.

Ross Noble, Sara Pascoe and Sally Phillips join Sandi and Alan for a varied episode.

Sandi Toksvig takes a QI look at some vets with Tom Allen, Melanie Bracewell, Desiree Burch and Alan Davies.

Convinced that events catastrophic to the Cold War are being planned at the British Open Chess Championships, Sister Boniface must brush off her chess skills and join the tournament.

Frank and Lu find themselves trapped in famous author Greg Alban's house.

Ralph Fiennes is on the sofa to talk about his play, "Grace Pervades"; Anna Faris returns to the world of "Scary Movie" for another instalment; Olivia Cooke is talking about the series "House of the Dragon"; and comedian Michelle De Swarte.

A thrilling battle of brainpower as four contestants pit their wits against The Chaser.

Roman Kemp and sidekick Sarah Greene host the quiz show where contestants race on moving podiums across the studio floor; correct answers get the players moving, while wrong answers will stop them in their tracks.

Contestants compete across the series, scoring points by answering questions correctly; they must avoid the impossible answers, otherwise they will be eliminated until the next day.

Roman Kemp and sidekick Sarah Greene host the quiz show where contestants race on moving podiums across the studio floor; correct answers get the players moving, while wrong answers will stop them in their tracks.

Contestants compete across the series, scoring points by answering questions correctly; they must avoid the impossible answers, otherwise they will be eliminated until the next day.

A thrilling battle of brainpower as four contestants pit their wits against The Chaser.

Roman Kemp and sidekick Sarah Greene host the quiz show where contestants race on moving podiums across the studio floor; correct answers get the players moving, while wrong answers will stop them in their tracks.

Contestants compete across the series, scoring points by answering questions correctly; they must avoid the impossible answers, otherwise they will be eliminated until the next day.

A vanished Neolithic structure in an Irish farmer's field, an ancient oasis in the remote reaches of a Chinese desert, a centuries-old buried treasure in the U.K. and a dreaded predator in the Pacific Ocean are discovered by accident using drones.

With food low, the group decide to move into new lakes but deciding which spot is best still requires patience and effort; after a long day of paddling, and switching their camp location, Joshua and Karly are too tired.

A long portage breaks into a windy lake, but with a deft hand the three canoes take to the water and make good time.

From the first brave passenger flying across Tampa Bay in 1915 in a rickety rust bucket, to 40 million commercial flights each year, how innovation, coach class and sex have made flying possible.

A vanished Neolithic structure in an Irish farmer's field, an ancient oasis in the remote reaches of a Chinese desert, a centuries-old buried treasure in the U.K. and a dreaded predator in the Pacific Ocean are discovered by accident using drones.

With food low, the group decide to move into new lakes but deciding which spot is best still requires patience and effort; after a long day of paddling, and switching their camp location, Joshua and Karly are too tired.

A long portage breaks into a windy lake, but with a deft hand the three canoes take to the water and make good time.

From the first brave passenger flying across Tampa Bay in 1915 in a rickety rust bucket, to 40 million commercial flights each year, how innovation, coach class and sex have made flying possible.

A vanished Neolithic structure in an Irish farmer's field, an ancient oasis in the remote reaches of a Chinese desert, a centuries-old buried treasure in the U.K. and a dreaded predator in the Pacific Ocean are discovered by accident using drones.

Roman Kemp and sidekick Sarah Greene host the quiz show where contestants race on moving podiums across the studio floor; correct answers get the players moving, while wrong answers will stop them in their tracks.

Melanie from Worcestershire, Matt from Manchester, Phil from London and Lisa from Ellesmere Port team up to face one of the country's finest quiz experts.

Sandi Toksvig is joined by Maisie Adam, Jack Dee, Kiri Pritchard-McLean and Alan Davies.

Aisling Bea, Mark Watson and Michelle Wolf join Sandi Toksvig and Alan Davis for a volatile episode.

Halle Berry, Chris Hemsworth, Rachel McAdams and John Bishop join Graham on his couch; Jessie Ware performs a single.

Roman Kemp and sidekick Sarah Greene host the quiz show where contestants race on moving podiums across the studio floor; correct answers get the players moving, while wrong answers will stop them in their tracks.

Melanie from Worcestershire, Matt from Manchester, Phil from London and Lisa from Ellesmere Port team up to face one of the country's finest quiz experts.

It's Ian's first day as director of integrity, and his first challenge is to decide which cities should host the semi-finals; it's also Miami Day, which may or may not be a Thing.

It's Rachel and Paul's wedding anniversary, and the family rise to the occasion with an array of gifts, including barbecues, an escape room experience and a Bulgarian smart speaker called Tim.

Considering the future of the Olympic Stadium; linking the Olympics with the Queen's Diamond Jubilee.

Anna Rampton is crowned director of better.

The Roadshow experts enjoy a visit from classic James Bond film icon Little Nellie.

It's Icons Week, and the remaining nine knitters tackle a solo challenge crafting stylish doggy outfits that blend creativity with structural integrity; split into three teams, they must pull off iconic 80s jumper designs.

Considering the future of the Olympic Stadium; linking the Olympics with the Queen's Diamond Jubilee.

Anna Rampton is crowned director of better.

The Roadshow experts enjoy a visit from classic James Bond film icon Little Nellie.

It's Icons Week, and the remaining nine knitters tackle a solo challenge crafting stylish doggy outfits that blend creativity with structural integrity; split into three teams, they must pull off iconic 80s jumper designs.

Sandi Toksvig is joined by Maisie Adam, Jack Dee, Kiri Pritchard-McLean and Alan Davies.

Aisling Bea, Mark Watson and Michelle Wolf join Sandi Toksvig and Alan Davis for a volatile episode.

Roman Kemp and sidekick Sarah Greene host the quiz show where contestants race on moving podiums across the studio floor; correct answers get the players moving, while wrong answers will stop them in their tracks.

Melanie from Worcestershire, Matt from Manchester, Phil from London and Lisa from Ellesmere Port team up to face one of the country's finest quiz experts.

Greeting a stay-at-home mom who's ready to rumble; a pep talk turns around a player's performance; take on mythology, strictly come dancing and literature trivia before one lucky finalist unleashes another 10,000-pound jackpot win.

Unlock military secrets from the air; spot a Nazi weapon designed to turn the tides of war in France; a covert Russian military tower in Chernobyl's shadow; a rumored nuclear lab buried in Australia; a hush-hush surprise underneath Alcatraz.

After months apart, the group is reunited by Knowledge Keeper Caleb Musgrave to heal old wounds, reveal their new paths, and share some life-changing secrets.

Two groups of strangers are dropped deep into the mountains of British Columbia; with no modern technology, the group struggles to build shelter and live the way their ancestors have since time immemorial.

Finding out what it takes to explore the final frontier; learning about a woman who bested the first American in space, the cool head of Apollo 11's commander, the dinner knife that saved a space station and the crash landing of a craft in Siberia.

Unlock military secrets from the air; spot a Nazi weapon designed to turn the tides of war in France; a covert Russian military tower in Chernobyl's shadow; a rumored nuclear lab buried in Australia; a hush-hush surprise underneath Alcatraz.

After months apart, the group is reunited by Knowledge Keeper Caleb Musgrave to heal old wounds, reveal their new paths, and share some life-changing secrets.

Two groups of strangers are dropped deep into the mountains of British Columbia; with no modern technology, the group struggles to build shelter and live the way their ancestors have since time immemorial.

Finding out what it takes to explore the final frontier; learning about a woman who bested the first American in space, the cool head of Apollo 11's commander, the dinner knife that saved a space station and the crash landing of a craft in Siberia.

Unlock military secrets from the air; spot a Nazi weapon designed to turn the tides of war in France; a covert Russian military tower in Chernobyl's shadow; a rumored nuclear lab buried in Australia; a hush-hush surprise underneath Alcatraz.

Roman Kemp and sidekick Sarah Greene host the quiz show where contestants race on moving podiums across the studio floor; correct answers get the players moving, while wrong answers will stop them in their tracks.

A thrilling battle of brainpower as four contestants pit their wits against The Chaser.

Sandi Toksvig takes a look at some visionaries with Cally Beaton, Nish Kumar, Laura Smyth and Alan Davies.

Rhod Gilbert, Ignacio Lopez and Zoe Lyons join Sandi and Alan as QI goes viral.

Margot Robbie, Jacob Elordi, Amanda Seyfried and Johannes Radebe join Graham; Jacob Alon performs "Don't Fall Asleep.".

Considering the future of the Olympic Stadium; linking the Olympics with the Queen's Diamond Jubilee.

Anna Rampton is crowned director of better.

The Roadshow experts enjoy a visit from classic James Bond film icon Little Nellie.

It's Icons Week, and the remaining nine knitters tackle a solo challenge crafting stylish doggy outfits that blend creativity with structural integrity; split into three teams, they must pull off iconic 80s jumper designs.

Father Brown must discover who's out to kill a tortured artist before it's too late.

Felix is Police Advisor on set of the latest "Oh! Do Behave!" picture; Felix is soon called to action once the abrasive director Sexton St Juste is found strangled.

Frank and Lu investigate a death at a Shakespeare-for-hire agency.

Father Brown must discover who's out to kill a tortured artist before it's too late.

Felix is Police Advisor on set of the latest "Oh! Do Behave!" picture; Felix is soon called to action once the abrasive director Sexton St Juste is found strangled.