Highlights for April (check your local listings):
"La Frontera with Pati Jinich, Season 2" (food and culture in the border states at the Southern border), 3 episodes, premieres April 3
American Experience: "The Sun Queen" (forgotten female solar energy pioneer), premieres April 4
Frontline: "America and the Taliban" (missteps and consequences of America's 20 year war in Afghanistan), 3 parts, premieres April 4
Great Performances: "Now Hear This, Season 4", 4 episodes, premieres April 7
"My Grandparents' War, Season 2"; 4 episodes, premieres April 11
Nature: "The Hummingbird Effect" (Costa Rica's hummingbirds), April 12; "Treasure of the Caribbean" (about 2013 discovery of uncharted coral reef), April 26
Nova: "Weathering the Future" (dramatic ways in which our weather is changing), April 12; "Chasing Carbon Zero", April 26
Next at the Kennedy Center: "Ballet Hispanico's Dona Peron", April 14; "Jason Moran and Christine McBride", April 21
Independent Lens: "Free Chol Soo Lee", April 24
"Iconic America: Our Symbols and Stories with David Rubenstein", 8 episodes, premiering April 26
Scripted: Masterpiece: "Tom Jones"; 4 episodes, premiering April 30