Prince Charles at 70 is an intimate and revealing portrait of Charles, Prince of Wales in his 70th birthday year. From his charitable work to his family life, see Britain’s longest-serving heir to the throne as never before, and learn his plans for his future as king.

Watch it tonight at 8pm on WGBH 2.

After the documentary, stay tuned for Masterpiece’s adaptation of the hit Broadway show King Charles III. A 2016 Tony nominee for Best Play, it imagines Prince Charles’ ascension to the throne following Queen Elizabeth’s death.