KODG-LD

How water arrived on Earth, and how it became the essential force behind all life -- from dragonflies to humans.

Leaders try to bridge the divide over solving climate change.

Catching up with nature.

Co-anchors Amna Nawaz and Geoff Bennett and correspondents offer in-depth analysis of current events.

The deep history, geology and human story of Kerry, from the first vertebrate life on a rocky shore to the struggle of early humans shaping a life in woods and valleys.

Cast iron lobster andirons circa 1880; a 1965 Roy Lichtenstein Shipboard Girl offset lithograph; a Japanese bronze lantern circa 1909.

A 1953 Marilyn Monroe pin-up poster; a diamond and platinum ring circa 1960; a 1910-1911 Philadelphia Athletics trophy, card and pin.

A child sexual assault survivor challenges Amish traditions that silence abuse in their communities, helping others seek justice.

Follows a group of trainees through the Los Angeles County Women's Fire Prep Academy.

Co-anchors Amna Nawaz and Geoff Bennett and correspondents offer in-depth analysis of current events.

Cast iron lobster andirons circa 1880; a 1965 Roy Lichtenstein Shipboard Girl offset lithograph; a Japanese bronze lantern circa 1909.

A 1953 Marilyn Monroe pin-up poster; a diamond and platinum ring circa 1960; a 1910-1911 Philadelphia Athletics trophy, card and pin.

A child sexual assault survivor challenges Amish traditions that silence abuse in their communities, helping others seek justice.

Author Harold Holzer, the Jonathan F. Fanton Director of the Roosevelt House Public Library Institute at Hunter College, discusses the life and times of President Abraham Lincoln.

The gang goes looking for their Nature Nap hammock; Nature Cat and his pals help an oyster named Elroy get back home.

After feeling left out, Luke decides to switch places with Stu; the Loops kids throw a surprise party for their parents.

A magical device solves problems in "What Is That Thing?"; Arthur and Buster trade places in "Buster's Best Behavior.".

The Mobile Unit is called to Pinehurst, N.C., to stop a villain who is stealing various objects.

A miniaturized Chris gets stuck to a bee.

A foggy Halloween almost derails Corky and Lily's trick-or-treating.

Lyla gets a strike her first time bowling but gets frustrated when she realizes bowling isn't as easy as she thought it was; Lyla feels left out when Everett and Ale's friendship thrives.

Lotta is frustrated learning a new dance, but realizes it is ok to experience music in her own way; Sheldon worries about telling Carl that he doesn't want to play pirates anymore.

The whole neighborhood helps Dr. Anna and Baker Aker celebrate their wedding, including Daniel, who has an important job as ring bearer.

Phoebe and Jay use a checklist to guide them through their tasks; Jay creates his first comic book and learns about the importance of page order.

Elmo's bike is great, but Abby's bike might be even better; Tamir teaches Elmo how to deal with feeling jealous and to enjoy the things Elmo already has.

Devonte J. Squirrel moves to the Treeborhood; Devonte and the Wombats create a machine that makes ice cream using a bike.

Donkey tries to act like a bird at Duck Duck's bird party, but she does not enjoy herself; Grampy and Donkey miss Gregory while he is away at camp.

Rosie helps Iggy get ready for his checkup; Rosie wants to play in the new park -- but it is a park for dogs.

Elinor and friends build a log bridge over a stream; the kids set out to learn everything they can about blinking when Ari is crowned the blinking champion at school.

Inspired by Supreme Court Justice Sonia Sotomayor, Alma tries to help her friends determine what's fair; Justice Sotomayor encourages Alma to be an umpire at a kickball game.

Molly makes it her mission to show Trini the Northern Lights; Molly realizes she wants to play the drum instead of the fiddle, but has to figure out how to tell her friend, Oscar, that she won't be taking lessons from him anymore.

Billie Jean King encourages Brad to take his first ballet class, even though he is worried about being the only boy in the class; Arthur Ashe helps Xavier, Yadina, and Brad see why they were wrong to exclude a new student at school from their game.

A 1937 Birger Sandzén landscape; Babe Ruth-signed photos; World War II work incentive posters.

Archaeologists uncover new truths about Pompeii, a wealthy Roman playground with dark secrets.

A survey flight over Turkey's Lake Iznik unexpectedly reveals the sunken remains of a fourth-century basilica.

Uncovering the hidden secrets of Athens, from the buildings on the Acropolis to silver mines and quarries.

Co-anchors Amna Nawaz and Geoff Bennett and correspondents offer in-depth analysis of current events.

Singers Ciara and Alanis Morissette examine their family histories.

Research into the ancestry of singer Lea Salonga and actress Amanda Seyfried reveals relatives who survived heart-wrenching ordeals.

Panelists explore the challenges and dilemmas around online sports gambling and its impact on young men.

Combat bodycam footage offers a look at war in the trenches as a Ukrainian platoon tries to liberate a village.

Co-anchors Amna Nawaz and Geoff Bennett and correspondents offer in-depth analysis of current events.

Research into the ancestry of singer Lea Salonga and actress Amanda Seyfried reveals relatives who survived heart-wrenching ordeals.

Panelists explore the challenges and dilemmas around online sports gambling and its impact on young men.

An explosive deep dive into the decades-long quest by America's conservative political machine to amass power by exploiting racial fault lines and stoking narratives of White victimization.

Daisy gets ready for the Animal Science Fair.

Lyla gets a strike her first time bowling but gets frustrated when she realizes bowling isn't as easy as she thought it was; Lyla feels left out when Everett and Ale's friendship thrives.

D.W. takes up Greek mythology in "D.W. Tale Spin"; Prunella is having a bad birthday in "Prunella Gets It Twice.".

A villain turns train cars odd; Orla is kicked off the squad when a library book she took out 400 years ago is overdue.

The Wild Kratts use Aviva's Time Trampoline to jump back in time to meet an extinct bird.

Dot and Al announce the Hunters are spending Christmas in Nigeria, and Corky wonders if she can have a fun Christmas without snow.

Lyla has to help multiple people but rushes each task, which makes things worse; Lyla must use her left hand after hurting her right wrist.

Carl doesn't know what to do when Nico falls; Carl learns a new word -- shindig.

Daniel and his friends are frightened by a big storm; helpers come together to clean up the neighborhood after a storm passes through.

Phoebe and Jay learn how to sort items; Phoebe and Jay learn how to make food labels, so everyone can participate in the potluck.

TJ is excited to meet his favorite comic book artist Bobby Manalo, and to make him feel welcomed on Sesame Street, TJ makes him a comic book gift with the help of Tamir; while working on it, Tamir also learns to say a few words in Tagalog.

The Treeborhood is alive with sound patterns; Zadie loses one of Louisa's toys.

Donkey and Panda search for hidden treasure; Cousin Hodie joins a day of games in Someplace Else.

Rosie decides to be a message delivery kid and deliver messages to her neighbors, but her messages get all mixed up; Javi temporarily loses his voice, so Rosie must help him recover before they perform their El Coco play.

The kids travel to Moose Mountain to retrieve Ari's plushie after it gets taken by an eagle.

Chacho chews up the socks that Alma plans to donate; Alma and friends make an animal show.

Qyah is having its first ever Ice Classic, a contest to predict when the ice on the river will break up; spring has sprung, and the whole village pitches in to clean up Qyah.

An autographed TIME cover collection; an 18th-century flambe Meiping vase; a 1957 Roy Rogers contest prize.

Mike and the team get re-acquainted with several women they've locked up in past cases when they investigate a suspicious suicide at Brokenwood Women's Prison.

Sabotage and gambling result in a murder; Foyle searches for the mother of a traumatized boy.

Co-anchors Amna Nawaz and Geoff Bennett and correspondents offer in-depth analysis of current events.

Discovering the wildlife and landscapes of Portugal -- including wild horses, storks, monk seals and more -- from forests to coasts.

The many species of raptors, from giant eagles to miniature falconets, and how they survive bitter winters, learn to hunt and undergo epic migrations.

The investigation into the March 2024 container ship collision that resulted in the collapse of the Francis Scott Key Bridge in Baltimore.