WHIQ-DT

Exploring the science and unexpected histories of "The Replacements," five animal and plant species that made allies of humans.

Exploring the modern city, including three species that thrive in that ecosystem.

A 1941 Rolls-Royce Wraith center caps and certificate; 1934 All-American basketball team autographs; a Maynard Dixon oil painting circa 1913.

Rome's rise through its art, including its supersized monuments, colorful mosaics and marble Caesars.

Exercising finger joints.

Creating a supine spine, loose hips and trim waist by imitating a cat; hip gyrations.

As the team prepares for a creature costume party, everyone starts to notice strange things happening around them.

Pinkalicious gets help from guest artist Yo-Yo Ma when the Kazoo Club can't seem to get along; Pinkalicious and her family learn the true meaning of Pinkville Day.

Benny's toy penguin is swept away by melting snow, transforming a day of sledding into an urgent rescue mission.

Even though Mom Tiger is working, Daniel wants her to play with him.

Jay and Lupe use wayfinding signs to track down Phoebe; Pete and Craig face an epic hoops battle on the courts.

On a hot day, Abby creates a snowman to keep her and Elmo cool; when they return from finding decorations, their snowman has vanished.

The Wombats program the "Toy Maker" when Mr. E's shipment is delayed; the Wombats track down a ruckus, discovering many noises along the way.

Donkey is nervous the first time she sleeps outside; Panda forgets his poetry notebook inside Donkey's messy windmill.

Iggy wants to see the garbage truck, but Rosie doesn't know how to get it to come to their house; Rosie attempts to bring nature inside.

Elinor and her friends volunteer to help Mr. Raccoon put up a sign for his bakery, but the sign keeps blowing away; it's Plant Day at school and when Elinor gets a cactus, she's a little disappointed at first.

Carl gets a universal screwdriver for his birthday; a storm creates a hole in the walkway to Carl's house.

Liana accidentally submits art that Stu made and feels guilty taking the credit for his work; Lyla and Luke perform an "Anansi" folktale puppet show.

Brad learns that asking questions can help him feel less afraid; overcoming a challenge makes Yadina feel proud.

Alma and Uncle Nestor get separated from the rest of the family on the subway; Alma and Junior are excited about their new neighbors.

Orli has taken on too many things at once, in addition to helping Orwell keep HQ running; The Oddness Monster needs to be watched.

Molly and Tooey decide to make a few of their own Alaska Native superheroes; Molly wants to fix up her old sled for Trini, but she's not sure she is ready to part with it.

As the team prepares for a creature costume party, everyone starts to notice strange things happening around them.

Anthropologist Niobe Thompson travels the world to uncover how the relationship between humans and horses evolved.

Anthropologist Niobe Thompson travels the world to uncover how the relationship between humans and horses evolved.

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

Rick Steves tours the Italian heartland, including Umbria, Assisi, Siena, and the Cinque Terre.

The seafood capital of Alabama, Bayou La Batre, and local favorite De Soto's Seafood Kitchen in Gulf Shores.

A recreation of Pink Floyd's legendary final "The Division Bell Tour," complete with a laser and light show, iconic circular screen, inflatables and theatrics.

A Beatles tribute band offers live performances of the group's hits. Songs include "Yesterday" and "Hey Jude.".

Tracing the band's whirlwind rise in 1963-1964; the creation of "A Hard Day's Night" feature film; the recording of songs like "I Should Have Known Better," "Can't Buy Me Love" and "Tell Me Why.".

Exploring Europe's Danube River, including secret tributaries, baby turtles and a waterfall riding kayaker.

A Marilyn Monroe-signed autograph; 1986-1987 Michael Jordan basketball cards and sticker; a Tiffany & Co. diamond and sapphire bracelet circa 1960.

A look at how the telescope was invented, from Galileo to Edwin Hubble, and how the invention reaches the universe 13 billion light-years out.

A 1941 Rolls-Royce Wraith center caps and certificate; 1934 All-American basketball team autographs; a Maynard Dixon oil painting circa 1913.

Headquarters of the European Union; medieval hospital; carillon concert; lace; art; Belgian chocolate.

Ball routine and other functional movements.

Stimulating digestion; reproduction organs; menstrual disorders; liver; kidneys.

The brothers learn about hunting mechanics from hammerhead sharks after Martin loses the Creature Power Discs.

Norman enters a gnome talent show; Pinkalicious and Peter learn that cleaning can be fun.

The Hunter kids head to the state park to learn why leaves change color.

Daniel takes care of the class pet; Daniel learns that taking care of Margaret makes him feel good.

Phoebe learns what privacy signs are and how to use them to communicate to neighbors; Jay gets nervous about getting a haircut.

When Oscar tries to find someone disappointed by his disappoint-o-meter, he accidentally makes them happy.

The wombats battle sea monsters, surfing scoundrels and pointy rocks on their way to make a sandwich delivery; Mr. E. buys a robot to hand out balloons.

Donkey accidentally breaks Grampy's favorite toy; Donkey and Panda play with a new Tater Buddy.

Rosie searches for an item to sell at the Neighborhood Market Day, but she struggles to find something just right; Rosie and her friend Javi decide to open a slime store.

Elinor learns about the importance of bones after she breaks her arm; the kids need to build a craft for the craft show and get inspired by mud.

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

Lyla and her siblings figure out a new morning routine so they won't miss the bus again; Lyla wants to learn a popular clap and dance sequence -- the Carrot Cake dance.

Ruth Bader Ginsburg inspires Yadina to speak up when the girls are left out of a Nature Troop activity, and she realizes she has the power to create change.

Alma gets jealous when Rafia and Lucas talk about their fun playdate; conflicting opinions influence whether Alma wants to see a new movie.

The Mobile Unit helps the New York City Odd Squad when agents go on strike; agent-in-training Orpita does her agent profile report on Omar.

Molly thinks she has seen a rare Australian megabat; Travis helps Molly, Tooey and Trini earn their wilderness cleanup badge.

Exploring sound and vibrations; building a wooden piano; wave demonstrator; how a music box makes its sound.

A recreation of Pink Floyd's legendary final "The Division Bell Tour," complete with a laser and light show, iconic circular screen, inflatables and theatrics.

A Beatles tribute band offers live performances of the group's hits. Songs include "Yesterday" and "Hey Jude.".

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

A panel of journalists provides reporting and analysis of the major stories emanating from the United States capital.

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.

Luther Vandross performs during a record-breaking 10 standing-room-only shows at London's Wembley Arena during his 1988-1989 world tour.

Celebrating the continuum of heritage and the handmade; featuring Graham Ebner, the Institute of American Indian Arts, Poakalani Quilters, Hokule'a, Marques Hanalei Marzan, Kawika Lum-Nelmida, the Bishop Museum, Cary Schwarz and Jeff Minor.

Cameras in space offer a new perspective of life on Earth as satellites follow an elephant family struggling through drought and thousands of Shaolin Kung Fu students performing in synchronicity.

Viewing Earth's kaleidoscope of colors, including swirls of turquoise phytoplankton, China's blooming yellow flowers, and the night waters near Argentina that are spotted with green lights.

Comics Tim Vine and Ricky Grover search for profitable antiques in southeast Scotland; David Harper and James Braxton guide them; the teams gamble on a mahogany chair and pewter candlesticks.

Roman ruins in Nîmes; Avignon's papal palace; Van Gogh's Arles; the Rhone.

Toning and stretching the muscles around the rib cage.

Exercises to stimulate the brain, including body tapping, visual tactile stimulation and reaction time drills.

A cleansing breath that flushes the digestive tract.

Parental attitudes toward learning disabilities or exceptional abilities.

Carl gets a universal screwdriver for his birthday; a storm creates a hole in the walkway to Carl's house.

Even though Mom Tiger is working, Daniel wants her to play with him.

George has a lucky streak, so his friends ask him to wish for a snow day; Prunella makes the gymnastics team.

Exploring sound and vibrations; building a wooden piano; wave demonstrator; how a music box makes its sound.

An action-packed learning adventure that focuses on science, technology, engineering and mathematics -- also known as STEM.

Going behind-the-scenes with "America's Test Kitchen" hosts Bridget Lancaster and Julia Collin Davison to highlight the food, science and kitchen ingenuity that made the show's 25 years a success.

Celebrating picnics and barbecue with Chris Fennimore and the America's Home Cooking team; recipes include horseradish potato salad, baked beans, apple hand pies and more summer favorites.

Full-length performances from various artists of the 1950s and 1960s, including Johnny Maestro, The Duprees, Jay Black, Little Anthony & The Imperials, Ronnie Spector, Frankie Valli, Jerry Butler and more.

The Smothers Brothers and Judy Collins host a look at the evolution of modern American folk music; performers include Glenn Yarbrough, the Highwaymen, the Kingston Trio and the Limeliters.

A celebration of folk musician Woody Guthrie's birthday features performances by Joel Rafael, Roseanne Cash and John Mellencamp.

Willie Nelson, Waylon Jennings, Johnny Cash and Kris Kristofferson perform their hits in this 1990 concert at the Nassau Coliseum; songs include "Big River," "Me and Bobby McGee" and "Always on My Mind.".

A 2016 concert celebrates Kris Kristofferson; performers include Dierks Bentley, Rosanne Cash, Eric Church, Emmylou Harris, Jamey Johnson, Alison Krauss, Lady A, Martina McBride, Reba McEntire, Willie Nelson and more.

Billy Joel's record-breaking 100th consecutive performance at Madison Square Garden; special appearances by Sting and Jerry Seinfeld.

A look at how the telescope was invented, from Galileo to Edwin Hubble, and how the invention reaches the universe 13 billion light-years out.

Comics Tim Vine and Ricky Grover search for profitable antiques in southeast Scotland; David Harper and James Braxton guide them; the teams gamble on a mahogany chair and pewter candlesticks.

A man searches for his childhood friend who encouraged him to come out; a man looks for a student who inspired him.

One of the first female commercial pilots hopes to thank her mentor; an advocate hopes to find the woman who gave her the inspiration to join a movement for equal rights.

The Riviera's yachts; Monaco harbor; Nice's promenade; artists' hangouts.

Stretching improves flexibility.

Using rhythm to keep different processing areas of the brain sharp with exercise combinations.

Simple exercises to relieve a stiff, tense neck.

Nature Cat and pals hike to the top of Mighty Mountain; the pals split up after an argument.

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

Pinkalicious, Peter and friends find a secret statue to play on; Mommy comes up with an invention to celebrate Pinkville's birthday.

Francine is upset she does not receive the Athlete of the Year Award; guest Michelle Kwan; Arthur gets a new babysitter.

Cinderella needs to tell time for the ball, but her clock is broken, so Nina, Abby and Rudy wonder what tool they can use to fix it.

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

As a volcanologist, Dev learns to track the warning signs that signal an upcoming volcanic eruption; detective Cora follows the clues to solve a Skillsville mystery.

As the number of people living with Alzheimer's disease grows, Americans have become increasingly interested in brain health and ways to prevent developing memory issues of any kind.

The seafood capital of Alabama, Bayou La Batre, and local favorite De Soto's Seafood Kitchen in Gulf Shores.

Rick Steves tours the Italian heartland, including Umbria, Assisi, Siena, and the Cinque Terre.

Never-before-seen stories of women who broke codes and split atoms, gathered news, crossed front lines and rescued children during World War II.

Lucy Worsley investigates the 18th century breakup of Britain and America, including the turning points that led to America's Declaration of Independence from Britain in 1776.

Exploring how the American Revolution affected Britain, with sabotage, espionage and political unrest reshaping the empire.

Behind the scenes with the cast and crew of "Grantchester" to explore how the series became a hit; featuring archival clips spanning 10 seasons and exclusive interviews.

Cora makes a discovery that could throw the inheritance issue into chaos. Under pressure from her aunt, Lady Rosamund Painswick, Mary keeps Matthew waiting for an answer to his proposal.

Dr. Daniel Amen explains the causes of memory loss, the seven foods and supplements that may enhance memory and how to supercharge memory with 11 simple daily practices.

Cora makes a discovery that could throw the inheritance issue into chaos. Under pressure from her aunt, Lady Rosamund Painswick, Mary keeps Matthew waiting for an answer to his proposal.

The intersection of history, culture and contemporary craft in the eastern region of the U.S.; featuring M&S Schmalberg, Bisa Butler, Colette Fu, Roberto Lugo, Ubaldo Vitali, Paul Revere and Helena Hernmarck.

Celebrating the continuum of heritage and the handmade; featuring Graham Ebner, the Institute of American Indian Arts, Poakalani Quilters, Hokule'a, Marques Hanalei Marzan, Kawika Lum-Nelmida, the Bishop Museum, Cary Schwarz and Jeff Minor.

Patrick Dykstra has a life-changing encounter with a sperm whale in Dominica.

Two versions of the shoulder stand pose; rotating, flexing and opening up the shoulders.

Martin and Chris search for a creature with good hiding powers -- the stingray -- for a game of Creature Hide and Seek.

Pinkalicious and Peter help the Color Fairy pick out the color of the year; Pinkalicious and Peter teach pirate Toothy McSquint manners before a dinner with Ms. Penny.

The Hunters head to a nearby mountain to learn about snow.

Cookie Monster uses his new Cookie Cart to bake for his friends; Grover tries magic to entertain his friends.

Captain Elmo's solo mission to Jupiter is interrupted when his friends join and mess up his plan; Grover tries to fix the spaceship boosters.

Director Grover has the perfect plan for his play; Tamir and Cookie Monster try to fix the suitcase.

Cookie Monster gets tired from pushing his cart, so Abby uses magic to make the cart move on its own; Grover tries to deliver boxes.

Duck Duck has a big feeling, but she doesn't know what it is; Clyde feels sad, so the pals give him time to feel better.

Rosie and Papa switch roles for the day, but it's trickier than they thought; Rosie tries to make a family tree for Valentine's Day.

The kids make their own instruments so they can participate in Señor Tapir's concert; when Elinor's dad falls asleep during a campout, the kids use flashlights to communicate to each other.

Elmo, Abby and Julia build a mini city while Grover helps Cookie Monster serve ice cream.

Lyla has to backtrack her hike at Moon Rock Cove to find her mom's missing phone; the Loops kids divide up kitchen cleaning chores between easy and hard, so everyone has an equal amount of work.

Xavier learns all about playing the recorder when he meets Johann Sebastian Bach; Marie Curie inspires Brad to follow his dreams.

Alma and Rafia want to make an animal photo book, but the animals won't cooperate; Alma and Rafia volunteer to help Safina after she hurts her arm.

Members of the Mobile Unit get zapped into sandwiches by villain Shelly Catessan; the Mobile Unit faces a series of challenges that Orla knew would be coming.

Molly embarks on a mission to find Grandpa's drum and return his lost songs to him; Connie tries to teach Molly, Tooey and Trini how to paddle a canoe.

Martin and Chris search for a creature with good hiding powers -- the stingray -- for a game of Creature Hide and Seek.

A close look at the life of George III, including the effect of his mental illness on Britain and how the assassination attempt on his life changed psychiatry.

The motives behind the Gunpowder Plot of 1605, and what might have happened if it succeeded.

Art Deco travel posters; a Waltham railroad pocket watch; a Lewis and Clark map; a visit to the Ypsilanti Automotive Heritage Museum.

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

Finds include a Michelin Bibendum ad figure, a World War I surgical kit and a 19th century southern basket.

A traveling puppet show circa 1870; Yakama toy cradle and doll circa 1890; a 1993 Air Jordan sneaker display.

The creation and cultural impact of the "Wishbone" children's public television series that brought classic literature to life, featuring cast, creators and behind-the-scenes stories.

Two films explore belonging, memory and aspiration, revealing how place shapes nostalgia, resilience and the pursuit of the American dream.

Twenty-four hours a day, the latest national and international stories as they break.

Scott visits Alaska to install a portable generator with a manual transfer switch to power hardwired appliances; Richard goes inside a dishwasher to explain each cycle; Tom repairs a piece of wood nosing.

ACL inducts Kentucky band My Morning Jacket into the ACL Hall of Fame; with special guest director and journalist Cameron Crowe.

Alabama's diverse cultural heritage hosted by Joey Brackner.

Reconstructing the royal wedding of Queen Victoria and Prince Albert, including the stories behind the dress, food and music.

A reconstruction of Queen Victoria and Prince Albert's royal wedding, including the wedding breakfast.

Comics Tim Vine and Ricky Grover search for profitable antiques in southeast Scotland; David Harper and James Braxton guide them; the teams gamble on a mahogany chair and pewter candlesticks.

Exploring ancient Roman cities from England to Turkey, including their art, aqueducts, theaters and churches.

Massage helps release tension.

Loosening the knees; strengthening the thighs; stretching the hamstrings.

The Kratt Bros. discover there is an old wily orca who only eats large sharks; they find this hard to believe, so with the help of Aviva's dolphin decoder, modified to speak orca, the Wild Kratts go in search of the orca who likes sharks.

Pinkalicious and Peter help Norman set up a garden; Pinkalicious gets a hat that turns everything into cupcakes.

The Hunters learn how temperatures can affect outdoor plants and gardens.

Daniel and his friends dance, sing and tell jokes that show their love and care for each other; Daniel hides hearts around the house to show his love for Grandpere.

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

Elmo, Abby and Julia build a mini city while Grover helps Cookie Monster serve ice cream.

The Wombats build a Cause and Effect machine; Super's best friend Chanaa pays a visit.

The pals want to hear the Yodel Birds sing, but they must build them a rest nest first; Donkey and Duck Duck want to cool everyone off with lemonade.

Rosie accidentally gives away her doll Lele on Donating Day; Rosie and Galita volunteer for Seniors Day at the Nature Center.

While helping Ms. Beaver construct a community garden the kids learn about rocks; Elinor tries to make her special dumplings all by herself.

Ronald, a meticulous, rule-following pig, and Roxy, a free-spirited musical hedgehog, explore the "wows" of one of America's most extraordinary places -- Sequoia National Park.

Lyla and Everett struggle to play Hot Cross Buns at the same tempo, and they learn how to read music; Lyla is upset when Luke's snack becomes popular.

Grandmaster Flash explains to Xavier that if he wants to create new music, he must experiment; Xavier and Yadina find out there are many ways to help Brad feel better after he falls off his bike.

Alma wants to hang out with Eddie's friends, but doesn't like it when she starts to feel like a little kid; Junior becomes everyone's pretend little brother.

Opie hosts the Odd Squad Superfan tour but finds out a villain has joined in disguise; Orli and Ozzie must solve 37 cases in order to get access to an exclusive club.

Grandpa Nat joins the kids on a night watch to determine what the mysterious light is in the sky; Molly and Tooey help Mr. Patak record a carving demonstration.

The Kratt Bros. discover there is an old wily orca who only eats large sharks; they find this hard to believe, so with the help of Aviva's dolphin decoder, modified to speak orca, the Wild Kratts go in search of the orca who likes sharks.

Finds include a Michelin Bibendum ad figure, a World War I surgical kit and a 19th century southern basket.

A traveling puppet show circa 1870; Yakama toy cradle and doll circa 1890; a 1993 Air Jordan sneaker display.

A 1962 and 1963 Mercury Atlanta number 8 and number 9 archive; a Rasht horse cover that was made circa 1875; a purple sapphire ring.

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

America Ferrera and Darren Criss uncover their immigrant roots.

Celebrating the 50th anniversary of Woodstock, the three-day concert at a farm in New York that marked the end of one of the most turbulent decades in American history.

Exploring the use of the Catalpa Worm as fish bait.

The chefs, local producers and entrepreneurs who lead the way in sourcing fresh, local ingredients in the city of New York.

Twenty-four hours a day, the latest national and international stories as they break.

Painter Mauro Henrique demonstrates a masking primer that leaves clean lines on a window; Richard tracks down the source of a clogged drain using some high-tech equipment; Scott warms up a chilly bathroom by installing an electric convection heater.