‘Castles in the Sky’ tells humorous true story of pre-World War II scientists

Eddie Izzard stars in “Castles in the Sky,” a funny, moving and inspiring drama about the pioneering work on radar by a real but little-known team of scientists leading up to World War II.

On Feb. 26, 1935, Robert Watson-Watt demonstrated for the first time that aircraft could be detected by bouncing radio waves off them. By the time the war began in 1939, radar stations were dotted along the British coast, tracking aircraft at distances of 100 miles away.

It was this invention – more than any other – that saved the Royal Air Force. This drama follows those early years as Watson-Watt and his team of scientists worked tirelessly to see their invention taken seriously, from the highs and lows, to the battles for funding and the political wrangling.

Watch “Castles in the Sky” on Sunday, Dec. 9, at 7 p.m. on Arizona PBS.

Sponsor message:

Sponsor message:

Explore the complicated history of African-American entrepreneurship in America

The history of business and entrepreneurship lies at the heart of the American story, but often absent from that narrative are the experiences of African Americans. "Boss: The Black Experience in Business" tells some of those forgotten stories and trends Tuesday, April 23, at 7 p.m. on Arizona PBS.

See the challenges, struggles and triumphs for African Americans in 'Reconstruction: America After the Civil War'

Host and producer Henry Louis Gates, Jr. takes you on a two-part, four-hour journey through one of America's most controversial-yet-least-understood historical periods.

PBS KIDS celebrates Earth month with new episodes, activities

Enjoy a special week of adventures from "Wild Kratts," "Nature Cat" and "Ready Jet Go!" beginning April 15.