Highlights: February 12-18

Masterpiece Theater at 8 pm Sunday and 8 pm Saturday presents part six of Downton Abbey, Series II. The Spanish flu strikes Downton, disrupting one match, hastening another and transforming the fortunes of all. Mary, Sybil and Robert each confront a moment of truth. Anna and Bates know a moment of happiness.

Slavery By Another Name at 8 pm Monday tells a harrowing story of how in the South, even as chattel slavery came to an end, new forms of involuntary servitude, including convict leasing, debt slavery and peonage, took its place with shocking force — brutalizing and ultimately circumscribing the lives of hundreds of thousands of African Americans well into the 20th century.

Through profiling local innovators, “Not In Our Town: Class Actions” at 9:30 pm Monday tells the stories of a suburban California school district, a mid-western college town and a college campus in the heart of the South where people are working together to stop hate and intolerance, and activitating their communities to create safer, more accepting environments for everyone.

Narrated by Kathy Bates, “Tupperware! American Experience” at 7 pm Tuesday reveals the secret behind Tupperware’s success: the women of all shapes, sizes and backgrounds who discovered they could move up in the world without leaving the house.

On Frontline at 8 pm Tuesday, “The Interrupters” presents profiles in courage, as three former street criminals in Chicago place themselves in the line of fire to protect their communities.

Nature at 7 pm Wednesday explores the diversity of wildlife and habitats of the Himalayas starring the mysterious snow leopard.

Nova at 8 pm Wednesday follows the charismatic Dr. Kenny Broad as he dives into Blue Holes — underwater caves that formed during the last ice age when sea level was nearly 400 feet below what it is today on “Extreme Cave Diving”.

Dr. Mark Aldenerfer and Pete Athans are on a mission, set within the world’s highest mountains, to find ancient mummies and uncover secrets that have been hidden in these cliff-top graves for thousands of years on “Cave People of the Himalayas” at 9 pm Wednesday.

Trouble Puppet Theater takes Arts In Context at 7:30 pm Wednesday on a journey into the art of puppetry as the company produces one of their unique plays led by creative director and master puppeteer Connor Hopkins.

A Harpist’s Legacy: Ann Hobson Pilot And The Sound of Change at 8 pm Thursday profiles the inspirational life and distinguished career of the revered harpist.

Chet bikes from Bastrop State Park to Buescher State Park, eats some BBQ, visits a famous paper doll artist, and travels to an Automotive History Museum in Smithville, TX on The Daytripper at 8:30 pm Thursday.

Independent Lens at 9 pm Thursday presents “More Than A Month”, a documentary that investigates what the treatment of history tells us about race and equality in a “post-racial” America.

Michael Feinstein’s American Songbook at 9 pm Friday examines the allure of musical nightlife, from Mississippi juke joints, where Feinstein dazzles the crowd with some impromptu boogie-woogie blues, to the neon of Las Vegas, where he has a private tour of the now-closed Liberace Museum – and gets to play one of the rhinestone encrusted pianos.

Thinking about tomatoes? Find out how to get ready, the best ones to grow, and tips for crop rotation in a small garden on Central Texas Gardener at noon Saturday. On tour, visit a community garden for organic tips to reap tasty harvests.

Bluegrass is the order of the night with Steve Martin and Sarah Jarosz on Austin City Limits at 7 pm Saturday.