BBC Four Thursday

Focusing on the development of the steamship, from the earliest paddle vessels to the Royal Yacht Britannia

Julia Bradbury begins the longest walk yet, a journey through the Highlands over territory with a history of clan conflict

A man who bickers with a woman over a shared phone line falls for her when they finally meet, and uses a fake identity to woo her. Romantic comedy, with Rock Hudson and Doris Day

An advertising executive tries to clinch a major campaign at any price, unaware the whole thing is a set-up by her hated rival. Romantic comedy, starring Doris Day and Rock Hudson

Terry Wogan interviews actor David Jason, British entrepreneur Jennifer D'Abo and American movie star Rock Hudson. First broadcast 22 September 1984

A 1993 documentary exploring three decades of Soviet space culture,from the glory days of Yuri Gagarin to the saga of cosmonaut Sergei Krikalev

Richard Fortey explores the world of fungi, including the story of their evolution, their mysterious life cycles and their value to both the planet and humanity

Focusing on the development of the steamship, from the earliest paddle vessels to the Royal Yacht Britannia

Julia Bradbury begins the longest walk yet, a journey through the Highlands over territory with a history of clan conflict