K18HD-D Climbing the ancient ruins of Uxmal, an ancient Mayan city; swimming; tamales; making cochinita pibil using the ancient technique of cooking meat with heated rocks buried underground. 2026-05-03 A snapshot of Europe in the year 1000 and Ireland's place within it; the rise of the Tudors, which coincided with the Protestant Reformation. 2026-05-03 Often overlooked, North America's tallgrass prairies are among the most dynamic and biodiverse ecosystems on Earth. 2026-05-03 Exploring the unique evolutionary journey of woodpeckers and the role they play in every ecosystem, except Antarctica and Australia. 2026-05-03 When a student from a prestigious college is found dead, Will and Geordie must infiltrate the murky world of campus politics to find the killer; Leonard returns from Marrakech. 2026-05-03 Will and Leonard witness a deadly hit-and-run in Grantchester; Geordie traces the car to a pair of decidedly dysfunctional brothers, whose house lies far off the beaten path; Will and Geordie both struggle as unwelcome guests look set to stay. 2026-05-03 An expectant father receives a life-threatening diagnosis; Trixie assists a female wrestler after a headlock goes wrong; Dr. Turner learns shocking news that implicates the future of the maternity house. 2026-05-04