WNIN-DT

How pigeons overcome the challenges of city life and thrive alongside people in London and New York.

Rising sea levels threaten tiny Tangier Island in the Chesapeake Bay off the coast of Virginia.

George threatens to withdraw money from the hotel, so Bella begins a new business.

Researching the identity of America's first peoples leads to Amazonian cave paintings, Mexican burial chambers, New Mexico's Chaco Canyon and waves off California's coast.

The rise of great American nations, from monarchies to democracies; lost cities in Mexico; a temple in Peru; a potlatch ceremony in the Pacific Northwest; shell beads in upstate New York.

Mr. McFeely delivers a book with a misprint.

Hacker claims to have become a good guy, and decides to run for election against Motherboard. Guest starring Al Roker.

The Wild Kratts are accidentally miniaturized while adventuring in the Amazon; they set out to retrieve the Miniaturizer stolen by a monkey, relying on the powers of the poison frog.

The kids learn what colors make up a rainbow just in time for a Mother's Day surprise.

Lyla and Stu make a mess decorating cupcakes; Lyla tries to retrieve Everett's lost coin.

Forrest makes too many plans on the same day; Carl and Arugula build an epic marble run but fail to get the marble to run.

Discovering the Isle of Skye; the legendary Loch Ness; the city of Inverness; the Culloden Battlefield where the Jacobite uprising of 1745 was smashed.

Exploring the picturesque town of Savannah, Ga., including a lighthouse and historic plantation.

A golden field of sparse pines and other greenery inside the unique shape with curved, cut-in corners.

Exploring the backstreets of Cairo on a tuk-tuk; baking pita bread; chiseling a tombstone; King Tut's gold; the ancient Sphinx; climbing to the center of a pyramid.

Debate and discussion on issues facing Indiana.

Health issues are discussed.

Gated estate Challis Court is a tight-knit community for retired police officers, but when a new arrival is found dead, the other residents regard the murder as an affront; Barnaby realizes that the killer is likely an ex-police officer.

A mission to band 100,000 birds on Kelleys Island; icebreakers and tugboats keep the lakes moving during the winter.

How Hong Kong got its name; junk boat; Big Buddha, Po Lin Monastery and the Wisdom Path on Lantau Island; Kung Wo Tofu Factory; Tin Hau Temple; Man Mo Temple; a traditional Qipao dress-making shop.

Relations intensify between the French, British and Native Americans as the war moves to upstate New York.

Hiking through local villages and trekking mountain gorillas in Uganda; tracing the path Katharine Hepburn took on "The African Queen"; Patience, a director in Entebbe, tells "decolonized stories" to bring dignity to her ancestors.

Mayan spirit healer Flordemayo; Eskimo-Kalaalit Shaman Angaangaq of Greenland.

Experts analyze prominent international affairs topics and America's role in a shifting world.

Supreme Court Justice Amy Coney Barrett discusses her book, "Listening to the Law: Reflections on the Court and Constitution," her background in New Orleans and why the Supreme Court remains an example of bipartisan civility.

Chloe finds evidence proving there is some truth in John Blakely's accusations; an unexpected development leads the team to suspect one of Jersey's most notorious criminals.

When Jasper's former mentor is murdered, a suspect is arrested but the truth hides darker secrets; Jasper risks everything to expose the killer.

Maigret and his team close in on Olga Borysenko's murderer; however, the investigation lands Maigret in more danger.

The British police join forces with the DEA to take down the international money laundering operation; in Tenerife, John Palmer has an unwelcome visitor as the pressure builds.

When Jasper's former mentor is murdered, a suspect is arrested but the truth hides darker secrets; Jasper risks everything to expose the killer.

Maigret and his team close in on Olga Borysenko's murderer; however, the investigation lands Maigret in more danger.