Kendra accidentally causes Goldie the unicorn to go missing; Pinkalicious brings her pet unicorn to school and discovers that even imaginary unicorns have to follow rules.

Molly makes it her mission to show Trini the Northern Lights; Molly realizes she wants to play the drum instead of the fiddle, but has to figure out how to tell her friend, Oscar, that she won't be taking lessons from him anymore.

An argument between Xavier and Yadina ends badly, but Maya Angelou helps the siblings find a way to forgive each other; Frederick Douglass helps Xavier when he becomes frustrated with his schoolwork.

The kids learn about China's Moon Festival; Honey, a mischievous hamster, settles down in a drum that is to be used for a drum ceremony.

Nature Cat and his friends make up silly stories for Nature Stories day; Hal tries to decorate his dog house to surprise his mommy.

The Kratt brothers want to fly with the peregrine falcon.

Dr. Daniel Amen outlines six practical steps to make one feel happier, sharper and more in control, including strategies to help with a variety of things from anxiety to addictions.

Dr. Mimi Guarneri blends modern science and ancient wisdom in a step-by-step program that addresses health, healing and longevity.

Folk musicians pay tribute to Pete Seeger on his 100th birthday; performers include Noel Paul Stookey, Peter Yarrow, Tom Paxton, Holly Near, Tom Chapin, John McCutcheon, Dar Williams, Josh White Jr., and more.

A revue show highlighting 10 years of Celtic Thunder hits and Irish and Celtic fan favorites; songs featured include "Danny Boy," Ireland's Call," and "Star of the County Down."

In-depth analysis of national and international news.

Artists, including Lin-Manuel Miranda and Bryan Cranston, discuss their passion for the theater.

A violin attributed to Johannes B. Ceruti; an 1836 Joseph H. Davis painting; frontiersman's pipe tomahawk.

DCI Vera Stanhope must unravel the circumstances of self-styled entrepreneur Freddie Gill's death.

Morse and Lewis investigate the death of an Englishwoman attending a psychotherapy school.

A Cameroonian immgrant runs an underground hair salon where she and her employees talk with customers about government programs to legalize migrants and life back in Cameroon.