This week on Nature, meet the scientists dedicated to restoring Puerto Rico’s endangered manatees, parrots, and turtles.

Don't miss Season 6 of Call the Midwife and the final season of Home Fires. Both shows return on April 2. 

Everyone's favorite Roman Catholic crime-solving priest is back with for a new season. Don't miss the matinee.

Leonardo da Vinci is well known for his inventions as well as his art. But new evidence shows that many of his ideas were realized long before he sketched them out in his notebooks — some even 1,700 years before. Was Leonardo a copycat?

Reel South, the public television series spotlighting documentary films steeped in Southern flavor, will return with an expanded season and a new host platinum-selling, Grammy-winning recording artist Darius Rucker.

A new three-part series explores how World War I forever changed America and the world. Don't miss The Great War on WHRO TV 15 starting tonight.