K19HG-D

When a Christmas light fan falls from his roof, Alexa gets involved in a case that's tangled up in knots.

Colombian American singer-songwriter Sebastián Yatra performs global hits and highlights from his album "Milagro.".

Singer-songwriter Warren Haynes.

Progressive Americana from The SteelDrivers from Nashville, Tenn.

The Shootouts lean into many influences including blues and rock; Americana with Christian Lopez; Broadway songwriter Nellie McKay.

Master series artists from past seasons share their songs.

A 25-year study uncovers how Fongoli chimps adapted to the extreme heat and dryness of Senegal's savanna woodlands.

An evolutionary ride from early aquatic ancestors to highly-optimized runners like the horse, whose story is linked to our own.

Mr. McFeely delivers a book with a misprint.

Daniel helps Katerina reassemble her tea set after it is knocked on the floor; Daniel helps finish a story about dinosaurs.

The parents and their children promise not to watch TV for an entire week; Arthur learns that Binky can't sleep without a night light.

A family of beavers builds a dam that accidentally diverts water into Trini's garden, threatening her strawberries; Trini is determined to earn the Night Watchers Badge.

Alma tells Junior a story about a magical place called Oz and a quest to see the Rubber Band Wizard.

The Wild Kratts search for the snub-nosed monkeys in the Chinese mountains.

Three curious kids explore the world of video games and career possibilities.

Farmer Dev harvests crops; Rae needs to get organized in order to deliver the mail.

Rick Steves takes a European alpine adventure from Italy to Austria and Switzerland to France; locations include the Dolomites, Zugspitze, Matterhorn, Aiguille du Midi and the Tour du Mont Blanc hiking path.

DI Alexander Blake arrives at Scotland Yard and kicks Eliza off the case of a missing Lord accused of murder; he has his own rule not to use private detectives and Eliza must convince the new boss that she is an invaluable resource.

The chairman of the powerful Guild of Private Detectives turns up dead; Blake finds himself working alongside Eliza whether he likes it or not; Ivy takes on a new opportunity.

A notorious serial killer known as the Thames Reaper is on the loose, and drowns their victims in the murky depths of the Thames; Eliza is caught in the middle of a clash between Fleet Street and Scotland Yard.

Patrick Nash finds himself unexpectedly enjoying an early release from prison, but he must complete an impossible task or get thrown back in jail; Ivy's career is gaining strength, but it may put her marriage plans in jeopardy.

Eliza and Blake are both investigating the murder of one half of a famous theater team; as their working relationship begins to flourish, their fledgling friendship also blossoms; Eliza may finally prove herself invaluable to Blake.

Eliza faces a conflict of interest when she is hired to investigate the personal life of Police Commissioner Fitzroy.

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

When Lady Felicia invites a prestigious group of writers to Montague, her hopes of being published are eclipsed by a murder.

Murder and cryptic ciphers put Jasper, Maiya and Dan in the crosshairs as loyalties fracture and fears of a serial killer grow.

After a wealthy businessman is killed, Guichard assigns the case to Maigret, who must trust his instincts despite pressure from his superiors.

As the police and criminal rivals close in on all fronts, the chase begins; Boyce meets an old foe.

Robert and Carson are dismayed when a Labour government comes to power in the general election of 1924; Lady Mary receives another proposal from Tony Gillingham.