WQED-DT

How discoveries over the past 50 years have revolutionized people's understanding of the universe.

Science, health, technology and environment experts and professionals address issues such as artificial intelligence, medicine and climate science.

A 1960 Ansel Adams Portfolio III: Yosemite Valley; a Persian Qashqai Gabbeh rug circa 1935; 1959 JFK's boxer shorts with signed photo.

A young man is found dead in a bookshop.

A surprise guest interrupts the picnic that Kristin, Breen and Gina throw for Mike's birthday.

The death of the owner of an unusual new business venture in Kitzbuhel reveals relationship secrets.

Blues rock musician Gary Clark Jr. performs highlights from "JPEG Raw"; Black Pumas present selections from "Chronicles of a Diamond.".

Allison Russell and her musical collective featuring Joy Clark, Caoi de Barra, Caoimhe Hopkinson and Elenna Canlas.

The story of the Irish is one of the triumph of the human spirit in the face of adversity; narrator Colin Farrell.

Hailing from Ulster in the North of Ireland, the Shamrock Tenors perform classic songs of Ireland that showcase their five-part harmony.

An all-standing workout aimed at strengthening the abs and waist; from Playa del Carmen, Mexico.

Small, gentle movements.

Lyla figures out how to do a magic trick with clues from Miss Emmaline; Luke finds a puppy.

Arugula and Carl go on an adventure as archaeologists; Carl spots a UFO on Mother's Day.

Martin and Chris find out that Zach Varmitech plans to capture a black jaguar.

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

Daniel visits the post office and learns how letters are sorted and mailed, then sends a letter to Dad; Daniel and Dad Tiger surprise Mom with banana bread.

Arthur's not sure what to make of the new baby; D.W. considers running away to Button Island.

Molly must find her mom's plane keys so she can get home in time for Mother's Day; Trini spots a talking white bird.

Phoebe and Jay accidentally get paint on the mail and have to decode addresses; Phoebe and Jay find their parents' box of memories.

The Cybersquad uses time travel to help Hacker understand why his pet smirble BB loves a healthy park.

Math, mapping and data visualization benefit a colony of bees in Phoenix.

Recognizing and acting on new opportunities.

Touring the "Mister Rogers' Neighborhood" television studio and meeting the staff.

Will and Geordie are drawn into campus politics when the leader of a student group falls to her death during a protest; the bishop introduces a new face at the vicarage.

Leonard calls on Will and Geordie for help after someone he knows is accused of murder.

After a successful music producer is murdered, Geordie is implicated in the investigation and is forced to consider whether his army buddy Johnny could be the killer.

Will and Geordie find themselves investigating stories of lost love and family inheritance after a dead body is found on a local estate.

When a cleaning brand owner is found dead under curious circumstances, Will and Geordie discover his private life is not the pristine image that his family presented to the public.

After a vagrant is found dead, Geordie can't shake the feeling that this murder could be connected to two previous unsolved cases.

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

Author and historian Marie Arana explains how Spain was involved in the colonies' fight for independence.

A new cohort of junior doctors join the midwives, including Timothy, who observes the contrast between clinical medicine and compassionate care at Nonnatus House; Violet announces her plan to shadow the midwives.

Sister Veronica weighs her future with the Order; Dr. Turner makes a final stand against the council's news before the maternity home closes; the Mullucks campaign for the rights of all thalidomide victims.

Becca and Rosaline reel from shock and seek solace in different directions as revelations about the circumstances surrounding Mary's death come to light.

Edmond reveals to Villefort that Heloise stole the vial of poison from him, the same poison used to murder the Marquise; Villefort confronts Heloise, threatening to expose her.

Grandmothers sit behind a lemonade-style stand in New York's Central Park, offering heartfelt life lessons to passersby.

Irish singer Róisín Elsafty's influences include Egyptian singer Umm Kulthium.

The life and music of bluegrass singer-songwriter Kristy Cox.

A look at the documentary series by Ken Burns that illustrates how the American Revolution came to life.

Legends of 1960s and 1970s soul music perform their biggest hits; acts include The Temptations, James Brown, Patti LaBelle, The Chi-Lites, The Spinners, Sam Moore and more.

A workout to strengthen and stretch the ribs, shoulders, and back while liberating and rebalancing the hips and hamstrings.

Exercises highlight range of motion throughout the shoulders and back.

Prunella receives a Braille copy of a book; Arthur and D.W. watch immature television shows.

Odd Squad must figure out how to control the temperature of two dragon eggs after the power goes out in headquarters.

Martin and Chris try to touch a hummingbird; the brothers utilize hummingbird powers to prevent Gourmand from cooking chocolate-covered hummingbird egg snacks.

As a hurricane approaches, the Hunter kids learn about preparation and safety, moving furniture inside and checking their emergency supplies.

Lyla and Stu help out when the neighborhood garbage truck malfunctions; Lyla and Louisa take a ride on the city bus and accidentally lose Stu.

Sheldon can't wait for Carl to play his favorite beach game; Lotta and her friends search for Lotta's lost blanket.

Daniel and O play post office; Jodi uses things in nature to make a homemade boat.

Phoebe plans a birthday surprise for Grandma; Phoebe and Jay must tend to the bell pepper in the garden.

Rudy is afraid of getting a shot at the doctor's office, so Nina and Abby play pretend to show what the visit will be like so he can feel less scared.

The Treeborhood celebrates a parranda; the Wombats try to stay awake on New Year's Eve.

California's Mojave Desert is filled with massive blooms of wildflowers in the spring.

Exploring Bologna's Piazza Maggiore, hidden canals and walking the portico to the San Luca sanctuary; shopping the Quadrilatero; a historic cutlery shop; a twins-run leather boutique.

A 1960 Ansel Adams Portfolio III: Yosemite Valley; a Persian Qashqai Gabbeh rug circa 1935; 1959 JFK's boxer shorts with signed photo.

Sister Veronica weighs her future with the Order; Dr. Turner makes a final stand against the council's news before the maternity home closes; the Mullucks campaign for the rights of all thalidomide victims.

Becca and Rosaline reel from shock and seek solace in different directions as revelations about the circumstances surrounding Mary's death come to light.

Edmond reveals to Villefort that Heloise stole the vial of poison from him, the same poison used to murder the Marquise; Villefort confronts Heloise, threatening to expose her.

A young man is found dead in a bookshop.

Coverage from Washington, D.C. and London, with a regular panel of guests from across the political spectrum discussing the biggest stories of the day.

Live news program produced out of BBC's Washington, D.C. bureau; host Sumi Somaskanda.

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

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

A Cartier Art Deco Tutti Frutti clutch circa 1925; a Carl Kauba cowboy bronze circa 1900; a Sumerian cuneiform tablet.

Green Bay Packers salesman's sample championship rings; Barbie dolls and wardrobe circa 1960; a 1977 Keith Haring Bean Salad lithograph.

The town of Natchez, Miss., confronts the tension between preservation and truth as it wrestles with race, memory and identity.

The histories of the Montier and Morrey families in Philadelphia.

Two veteran pollsters discuss climate, environment and energy; featuring Ashley Grosse and Alec Tyson.