BBC First

Witness animal spectacles from high above the Earth; watch a whirling herd of northern nomads; see undersea behemoths show off in the Pacific shallows; track a U.S. porcine stampede; confront top ocean predators on the Florida coast.

Welcome five new speed demons who are on the hunt for the right answers that will get their podiums moving toward the finish line; face fast-paced qualifiers, head-to-head races and a final human-versus-track round as they vie for the cash payout.

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

Gyles Brandreth, Judi Love and Kiri Pritchard-McLean.

Sandi Toksvig puts the UK-US special relationship under the microscope with Kemah Bob, Alex Edelman, David Mitchell, and Alan Davies.

Hugh Jackman, Kate Hudson, Ben Stiller, Da'Vine Joy Randolph and singer-songwriter Sombr perform his single 12 to 12.

Mrs. McCarthy strikes it lucky at the church bingo with the help of a Romani fortuneteller.

Sister Boniface and the gang are horrified to discover the hallmarks of a ritualistic human sacrifice in the woods, supposedly acted out by a coven of witches.

Lu infiltrates a local slimming club to uncover their secrets, but she gets more than she bargained for when she realises her sister is a member.

Sandi and Alan are joined by Jason Manford, Ahir Shah and Holly Walsh to look at veggies.

A comedy quiz show full of quirky facts, in which contestants are rewarded more if their answers are "quite interesting.".

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.

Sandi and Alan are joined by Jason Manford, Ahir Shah and Holly Walsh to look at veggies.

A comedy quiz show full of quirky facts, in which contestants are rewarded more if their answers are "quite interesting.".

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.

Gyles Brandreth, Judi Love and Kiri Pritchard-McLean.

Sandi Toksvig puts the UK-US special relationship under the microscope with Kemah Bob, Alex Edelman, David Mitchell, and Alan Davies.

Welcome five new speed demons who are on the hunt for the right answers that will get their podiums moving toward the finish line; face fast-paced qualifiers, head-to-head races and a final human-versus-track round as they vie for the cash payout.

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

Squaring off on national parks, Downton Abbey, musical theatre and human anatomy.

Examine mysterious holes in Isreal; explore a ghost village hidden in the Colombian jungle, a shipwreck off the coast of Sri Lanka and a gutted airplane fuselage abandoned in Iceland.

Everyone is left shocked after an adventurer calls it quits and leaves the journey for good; the remaining five are torn apart, as some look to potentially branch off on their own.

The strain and stress of two camps affects everyone, with Karly not sure if they should ever reunite, and Theresa struggling to keep everyone moving forward on the journey.

When the lost tomb of King Tut is opened in 1922, it's not only the famous Curse that is unleashed.

Examine mysterious holes in Isreal; explore a ghost village hidden in the Colombian jungle, a shipwreck off the coast of Sri Lanka and a gutted airplane fuselage abandoned in Iceland.

Everyone is left shocked after an adventurer calls it quits and leaves the journey for good; the remaining five are torn apart, as some look to potentially branch off on their own.

The strain and stress of two camps affects everyone, with Karly not sure if they should ever reunite, and Theresa struggling to keep everyone moving forward on the journey.

When the lost tomb of King Tut is opened in 1922, it's not only the famous Curse that is unleashed.

Examine mysterious holes in Isreal; explore a ghost village hidden in the Colombian jungle, a shipwreck off the coast of Sri Lanka and a gutted airplane fuselage abandoned in Iceland.

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.

Jordan Gray, Jason Manford, Sara Pascoe and Alan Davies to find the links between ugly feet, empty crisp packets, a Vermeer masterpiece and Countess Mountbatten's lingerie.

Sandi Toksvig dusts off her tinfoil hat for a look at ufology with Cally Beaton, Nish Kumar, Tom Ward, and Alan Davies.

Glenn Close, Alexander Skarsgård, Miriam Margolyes, Nicola Coughlan, Jessie J.

Sandi and Alan are joined by Jason Manford, Ahir Shah and Holly Walsh to look at veggies.

A comedy quiz show full of quirky facts, in which contestants are rewarded more if their answers are "quite interesting.".

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.

The death of a scientist at the site of a live volcano proves a difficult case to crack for Humphrey and his team.

When crabby Vince Ogden is found dead in his locked bedsit, it is presumed he ended his own life; but Mack can sense murder and is more than happy to throw herself into the case.

Players are presented with clues in the form of answers and phrase their responses as a question.

The death of a scientist at the site of a live volcano proves a difficult case to crack for Humphrey and his team.

When crabby Vince Ogden is found dead in his locked bedsit, it is presumed he ended his own life; but Mack can sense murder and is more than happy to throw herself into the case.

Players are presented with clues in the form of answers and phrase their responses as a question.

Jordan Gray, Jason Manford, Sara Pascoe and Alan Davies to find the links between ugly feet, empty crisp packets, a Vermeer masterpiece and Countess Mountbatten's lingerie.

Sandi Toksvig dusts off her tinfoil hat for a look at ufology with Cally Beaton, Nish Kumar, Tom Ward, and Alan Davies.

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.

Hitting a pop-music high note, looking at ancient Rome and facing TV trivia heartbreak.

Investigate an abandoned village in the shifting sands on Dubai's outskirts and a collection of inexplicable stone circles in Colombia; a mysterious hilltop tower in Iran and a puzzling purple phenomenon in Chile's Atacama Desert.

The adventurers are revitalized as they move further inland on the river and problems with their shelter are quickly overcome after another successful hunt; Joshua and Theresa grow closer.

With the seasons turning and food sources low, stress and loneliness push Jody to the edge, leaving the others wondering if they can continue with another loss.

The Soviet Red Army and the Western Allies are in a race to the finish line.

Investigate an abandoned village in the shifting sands on Dubai's outskirts and a collection of inexplicable stone circles in Colombia; a mysterious hilltop tower in Iran and a puzzling purple phenomenon in Chile's Atacama Desert.

The adventurers are revitalized as they move further inland on the river and problems with their shelter are quickly overcome after another successful hunt; Joshua and Theresa grow closer.

With the seasons turning and food sources low, stress and loneliness push Jody to the edge, leaving the others wondering if they can continue with another loss.

The Soviet Red Army and the Western Allies are in a race to the finish line.

Investigate an abandoned village in the shifting sands on Dubai's outskirts and a collection of inexplicable stone circles in Colombia; a mysterious hilltop tower in Iran and a puzzling purple phenomenon in Chile's Atacama Desert.

Welcome five new speed demons who are on the hunt for the right answers that will get their podiums moving toward the finish line; face fast-paced qualifiers, head-to-head races and a final human-versus-track round as they vie for the cash payout.

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

Sandi and Alan look at some 'U' animals with Rhod Gilbert, Lara Ricote and Ahir Shah.

Tom Allen, Chris McCausland and Lou Sanders look at a range of unrelated 'U' topics.

Kate Winslet, Jacinda Ardern, Alan Carr, Seth Meyers, Cat Burns.

The death of a scientist at the site of a live volcano proves a difficult case to crack for Humphrey and his team.

When crabby Vince Ogden is found dead in his locked bedsit, it is presumed he ended his own life; but Mack can sense murder and is more than happy to throw herself into the case.

Players are presented with clues in the form of answers and phrase their responses as a question.

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

A boycott and politics threaten the opening ceremony after a visit from its creative director; it's time for Ian to think about life after football.

A disastrous Jessop family holiday is rescued by a run-in with the local police.

Now juggling day jobs with their endless renovations, Mike and Alison are both penniless and exhausted when a luxury hotel chain makes them an offer they can't refuse; the ghosts vow to help the cash-strapped couple with get-rich-quick schemes.

Beth has organized the perfect baby shower for mom-to-be Sophie; everyone is invited and Christine has even asked Pat from over the back, who she's assuming is going to be the baby's godmother.

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

A boycott and politics threaten the opening ceremony after a visit from its creative director; it's time for Ian to think about life after football.

A disastrous Jessop family holiday is rescued by a run-in with the local police.