K35GU-D

Midwestern farmers use agriculture technology to improve yield, soil health and the environment.

Exploring Texas Polish country with stops to Panna Maria, the oldest Polish settlement in America, and an authentic Polish sausage maker; castle-like courthouse; a pickle-topped snow cone; wood-fired steak.

Hueco Tanks pictographs; Cedar Hill State Park; crested caracara.

Live news program produced out of BBC's Washington, D.C. bureau; host Sumi Somaskanda.

Co-anchors Amna Nawaz and Geoff Bennett and correspondents offer in-depth analysis of current events.

Henry David Thoreau pursues a career as an author, retreating to a cabin in the woods to live simply and write.

Thoreau finds solace in nature and writes two books at Walden Pond; over his two year stay, an expedition to Maine and an act of civil disobediance protesting slavery reshape his idea of freedom.

Tiffany Studios Turtle-Back diver's lamp circa 1905; John George Brown's Making Houses of Sand Oil circa 1880; a Chinese silk dragon panel circa 1775.

Christiane Amanpour leads discussions about world issues and interviews with global leaders.