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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 Europe's art and creative geniuses, from Leonardo da Vinci to Vincent van Gogh; Florence's bold "rebirth" after Europe's medieval struggles; impressionist works of the late 1800s.

A panel of journalists provides reporting and analysis of the major stories emanating from the United States capital in this award-winning series. It first aired in 1967, making it the longest-running prime-time news and public affairs program on television.

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

Reba McEntire performs some of her biggest hits at Madison Square Garden; songs include "Turn on the Radio," "Can't Even Get the Blues," "Going Out Like That" and "Fancy.".

The life, career and music of Dolly Parton are reflected in interviews with friends, companions and the artist herself, mixed with clips of Parton's performances.

Broadcast performance clips from 1956 include Elvis Presley's appearances on "The Ed Sullivan Show" and "The Steve Allen Show.".

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.

Frankie Laine, Julius LaRosa, the Four Lads, the Four Freshmen and Herb Reed's Platters are a few of the musicians who perform their hits of the late 1950s and early '60s.

Peggy Cappy demonstrates how yoga helps people increase strength and mobility at any age.

Relieving stiffness, pain and fatigue of joint inflammation; host Peggy Cappy.

Exploring the unique evolutionary journey of woodpeckers and the role they play in every ecosystem, except Antarctica and Australia.

Four members of the Artemis II crew embark on a perilous 10-day journey to orbit the moon.

Rick Steves presents essential skills for smart travel in Europe, from itinerary planning to avoiding crowds.

Filmmaker Ken Burns tells the story of Thomas Jefferson, beginning with his youth in the Virginia wilderness and his early political career.

Jefferson's terms as Secretary of State and Vice President, and his election to the presidency; the highs and lows of Jefferson's retirement to Monticello.

Margaret Hoover leads interviews and debates.

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

In the aftermath of the siege, Geordie fights for his life; Alphy tracks a fugitive through the countryside; the Grantchester family must face final questions of love, redemption and forgiveness.

Cast and creators provide behind-the-scenes insights into Season 6.

Edith is enthusiastic about her wedding and hopes to convince her family that Strallan's age does not matter. With Downton's finances dire because of Robert's actions, Mary takes matters into her hands -- but the personal price may be high.

Branson's political views land him in hot water, and Sybil's loyalty is tested to the limit. Meanwhile, Ethel is torn between head and heart as she makes a difficult decision about her son's future. Elsewhere, Anna is dispirited at Bates' silence.

Cast and creators provide behind-the-scenes insights into Season 6.