BBC Four HD Wednesday

The history of iron and steel industries, beginning with a trip to Ironbridge Gorge in Shropshire, and a visit to a steam-powered rolling mill in Bolton, Lancashire

Liz McIvor presents a documentary examining excursion trains, which became popular from the 1840s onwards, with tourists taking day trips and holidays

The rise and downfall of Margaret Thatcher, as told by members of her inner circle, who reveal how a political outsider won power and came to dominate the 1980s

Documentary examining the influence that the jet stream - a ribbon of fast-moving air high up in the atmosphere - has on everyday weather

Actor Bhasker Patel looks back on his experience of playing Gholam in the 1995 film, Brothers In Trouble, sharing his memories of the cast, production, and more

A group of illegal immigrants' lives in Sixties Britain are thrown into upheaval by the arrival of a pregnant Irish woman in their household. Drama, starring Om Puri

Documentary tracing the history of the death sentence, examining the protocol of public execution and the science of hanging

The history of iron and steel industries, beginning with a trip to Ironbridge Gorge in Shropshire, and a visit to a steam-powered rolling mill in Bolton, Lancashire

Liz McIvor presents a documentary examining excursion trains, which became popular from the 1840s onwards, with tourists taking day trips and holidays

Huw Stephens reveals how, as the 20th century dawned, artists found radical new ways to depict Wales, pushing themselves to extremes

The rise and downfall of Margaret Thatcher, as told by members of her inner circle, who reveal how a political outsider won power and came to dominate the 1980s