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Muslims and Christians unite to fight desertification in Africa's Sahel.

The ladies and men's departments are put amid the toys because of Mr. Grace's penchant for moving departments.

Rick Steves talks about the value of travel.

A photo safari of Portugal's Azores Islands in the Atlantic Ocean.

The island of Terceira in the Azores; exploring the island of São Jorge; steep jungle cliffs lead to breathtaking views and to a quaint village on the southern coast.

Traveling through the Western United States, including Montana and Wyoming; buffalo and a nearly lost language return to the Blackfeet reservation; women entrepreneurs and a community wool mill rebuild rural economies.

Professor Tempest's mother is hospitalized; a murder occurs in the school.

Although he is injured, Maigret and his team continue investigating Adeline's past; when they uncover that she was the latest of three violent deaths, Maigret must decide whether to destroy two more lives.

The proceeds from the stolen Brink's-Mat gold are laundered through growing international criminal networks; the police pick up the trail as their investigation spread overseas.

Buster's friends learn he has asthma in "Buster's Breathless"; Halloween pranks run amok in "The Fright Stuff.".

On the town's football derby day, Osric tries to solve a case while being followed by a documentary crew; Techie Tallulah heads to Niagara Falls on a mission that will get Orli out of Precinct 97531 so she can carry out her evil plan.

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

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

Lyla asks customers for their leftover pumpkins, but then gets way too many; Lyla and Luke put their sisters, Liana and Louisa, through a babysitting test.

Carl and his pals are excited about trick-or-treating until Forrest shares a spooky rumor that Mr. Price is a wizard who turns kids into chicken noodle soup.

Daniel's birthday cake is smushed during a bumpy ride on Trolley; Daniel, Prince Wednesday and Miss Elaina enjoy their picnic despite the rain.

A giant bookworm is eating its way through Reader Valley; Outta Space ruins a picnic by making it rain; Villains race the Super Readers.

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

Rosita and Elmo play Beach ball Bop around Sesame Street, a game where they hit a ball into the air and don't let it touch the ground; Elmo feels angry and yells at Rosita when he hits the ball and accidentally knocks over his block tower.

Bex and Sammy have a sleepover at Yolanda's house; Zadie makes everyone mad when she invents a new dancing game but won't let anyone else be in charge.

Martin and Chris reveal some of the creepiest creature powers on the planet.

The kids each tell a spooky tale about a creature in nature who pretends to be scary; after Ari's sandwich grows mold, and he names it Doug, he's determined to learn more about it.

Alma is consumed with her starring role in a musical; Alma and Harper have a playdate at the Rivera house.

Molly plants fireweed in hopes of attracting a rare hummingbird; she must handle a surprise shipment when she organizes the Trading Post in preparation for winter.

Chef Johanne Killeen bakes gingerbread-baby cake and johnnycake cobblers.

Retrofitting a radiant floor system; cable railing connections and maintenance; the updated USDA Plant Hardiness Zone Map.

An intimate look at a silverback family in Gabon's Loango National Park; a newborn gorilla, forest elephants and buffalo in the last remaining wild coastline in the African tropics.

Deviled pork chops; a tasting of dark chocolate chips; oven mitts for children; non-Newtonian fluids; thick-cut oven fries.

Woodman's-style clam chowder; how to eat oysters at home; inexpensive blenders; how to humanely cook lobster; hot buttered lobster rolls.

Will and Geordie's much-needed vacation takes an unexpected turn when the camp owner is found dead under suspicious circumstances.

A 1934 Martin 000-18 guitar; Ansel Adams modern prints circa 1960; a Longines aviator watch circa 1938.

The ladies and men's departments are put amid the toys because of Mr. Grace's penchant for moving departments.

A detailed look into news stories from around the world from the BBC news desk in Washington, D.C.

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

Neil Patrick Harris, Gloria Steinem and Sandra Cisneros are connected to pioneers who paved the way for modern-day descendants.

A panel of leaders in tech, culture, politics and journalism explores AI through challenging hypothetical scenarios: the choices local communities make, privacy and policing and its impact on our lives, with the goal of finding common ground.

Leadership lessons learned from presidents and first ladies.

Young Mr. Grace is not pleased with the events of Founder's Day.

From Ireland to the Greek Isles, a look at Stone Age cave paintings, megaliths and mysterious goddesses.