KTWU-DT

The crucial ecological roles that beetles play in nearly every environment, and why they are often regarded "the most important species on the planet.".

Relationships aboard the ISS are tested when war breaks out on Earth.

Robots are first conceptualized in ancient Rome; how uses for robots have evolved over the centuries, from the calculator to the Roomba; what future robots might be able to do.

Neil Dudgeon and acting royalty Dame Diana Rigg travel around their native Yorkshire; Neil finds his feet in the world of antiques, while Dame Diana shows her expert that she's in charge right from the start.

A gentle seated yoga session using a chair for support, including seated sun salutations and gentle stretches designed to increase range of motion and enhance mobility in the shoulders, upper back, hips and more.

Releasing tension; preventing headaches; upside down poses.

A full-body workout includes a gentle warm-up and circulation segment using "Fred Astaire" arms; other segments incorporate a large ball and weights; guest instructor Jeff Brooks, PT, offers insight into balance and fall prevention exercises.

The Hunters search for a way to monitor the weather after they lose power during a thunderstorm.

Lyla gets a strike her first time bowling but gets frustrated when she realizes bowling isn't as easy as she thought it was; Lyla feels left out when Everett and Ale's friendship thrives.

Carl and Sheldon are on a thank-you mission; Carl shows his friends the right way to play with pet rocks.

An artist teaches Albie a self-portrait exercise that gives her confidence; a drumline team shows Albie a way to make tidying up fun.

Phoebe and Jay learn how to keep cool while using their thermometer to track the temperature in the apartment; Pete and Grandma Annie teach the kids how to tell time.

Rudy is afraid of getting a shot at the doctor's office, so Nina and Abby play pretend to show what the visit will be like so he can feel less scared.

Malik learns the key to a successful "Brother Day"; Zeke and Louisa wait tables at the Eat 'N Greet after Duffy sprains her ankle.

Celebrities, cast members and Joanne Rogers recall their favorite moments from "Mr. Rogers' Neighborhood" as they celebrate the 50th anniversary of the series.

Mary Beth Franklin talks about claiming social security, including at what age one should claim it, and provides insight on how to get the most out of retirement benefits.

By the 1920s, John Deere, Ford and International Harvester emerged as leaders to develop a reliable tractor that would become part of everyday agriculture.

Celtic Woman celebrates 20 years at The Helix in Dublin with special performances by founding members Chloë Agnew, Lisa Kelly, Méav Ní Mhaolchatha and Máiréad Nesbitt.

Following the stories of enslaved and freed Black Americans who fought to define democracy and their liberty through the Revolutionary War.

Celebrating the timeless legacy of country music with performances of classic hits by trailblazers including Willie Nelson, Johnny Cash, Kris Kristofferson, Waylon Jennings, Kenny Rogers and Dolly Parton.

Alastair Bruce examines how aristocrats behaved in the 1900s Britain, including how they dined, dressed and interacted with servants.

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.

Rick Springfield is joined by Wang Chung and John Waite in a concert featuring some of the biggest hits of the 1980s; some songs include "Everybody Have Fun Tonight," "Missing You" and "Jessie's Girl.".