S1.E9 ∙ Chewing Gum for the Eyes

A symbolic union of countries is profiled in this historical documentary. On July 17, 1975, the American Apollo spacecraft joined with the Soviet Soyuz, where NASA's Thomas Stafford shook hands with Russian Alexey Leonov.

An independent documentary directed by Bobbito Garcia and Kevin Couliau. The film explores the definition, history, culture, social impact and global influence of New York's outdoor summer basketball scene, the worldwide 'Mecca' of the sport.

With access to recently-opened court files, Julie Etchingham reveals some of the Stasi's UK operations and asks why its other secrets are yet to be revealed.

Remote submersibles explore the legendary liner, traveling down hallways and into ballrooms and living quarters, concentrating on the bow to midships, where the vessel broke in half. Also: stories of passengers.

Robson Green spends a year working with the team of engineers who have been commissioned to rebuild the most famous steam engine in the world. Starting in February, Robson is given the task of cutting off the front end of the Scotsman and welding on a whole piece, and sets out to Durham, where he discovers how the invention of the steam engine helped to change the world. After a year in the workshop, the iconic train is ready for its first test run, and Robson realises a lifelong dream and gets to ride on the footplate as it sets off.