

BBC Four HD today Find out what's on TV.
- 3:30am
This Is BBC Four
BBC FOUR is the BBC channel for people who want more. More depth, more range, more to stimulate the mind.
- 7:30am
This Is BBC Four
BBC FOUR is the BBC channel for people who want more. More depth, more range, more to stimulate the mind.
- 11:30am
This Is BBC Four
BBC FOUR is the BBC channel for people who want more. More depth, more range, more to stimulate the mind.
- 3:30pm
This Is BBC Four
BBC FOUR is the BBC channel for people who want more. More depth, more range, more to stimulate the mind.
- 7:00pm
The Architecture The Railways Built
Series 1 Episode 9Tim Dunn visits the architecture of the Stockton and Darlington railway, the first passenger steam line in the world and learns how Essex's enormous Chappel Viaduct was built.
- 7:45pm
Flying Gardener
Shorts: Devon GardenerChris Beardshaw visits inspirational gardens by helicopter. He travels to Devon to help Carol Cooper and her husband Stephen develop a beautiful spring woodland garden.
- 8:00pm
Himalaya With Michael Palin
Series 1 Episode 4: The Roof of the WorldLeaving Everest base camp to take the high road to Lhasa to see what the Chinese have done to Tibet. Michael sees that religion is once again tolerated, while the old Tibetan centre of the city is being replaced with modern Chinese shopping malls and nightclubs. Following the pilgrims to the holy Namtso Lake, he gets warm in a hot spring before learning how to milk a yak with a nomad family.
- 9:00pm
Secrets of Size: Atoms to Supergalaxies
Series 1 Episode 2: Going BigJim encounters ever larger cosmic structures to reveal the latest breakthroughs in understanding of the universe. For example, there's the heliosphere, a vast cloud of solar plasma that surrounds and protects the solar system. Its unique physics help people understand why life is possible. Larger still, Jim comes face to face with our galactic home the Milky Way, a monstrous structure sculpted by the gravitational forces of dark matter.
- 10:00pm
Vivien Heilbron Remembers... Cloud Howe
Actress Vivien Heilbron looks back on the 1982 drama series Cloud Howe, the second part of the BBC's acclaimed adaptation of Lewis Grassic Gibbon's classic trilogy A Scots Quair. Vivien's character Chris is now moving on from the death of her first husband, newly married to a church minister and trying to manage a new life in a small town where gossip and rumour runs rife.
- 10:15pm
Cloud Howe
Series 1 Episode 1: CirrusMoving from Kinraddie to the mill town of Segget, Chris Guthrie is now married to a young and idealistic minister, Robert. Her unease grows as she struggles to understand the dark moods that engulf her new husband as his vision for the town is met with resistance.
- 11:10pm
Cloud Howe
Series 1 Episode 2: CumulusPolitical unrest grows in Segget as Chris dreams of having another child. As Robert finds it hard to exact any change in the town, the return of the Laird helps little.
- 12:10am
Cloud Howe
Series 1 Episode 3: StratusTesting times in Segget as Chris is met with suspicion and town rumours, which upset Robert. Clashes with the striking miners ends in tragedy.
- 1:10am
Cloud Howe
Series 1 Episode 4: NimbusChris and Robert are wearied by life as they increasingly find they can do little to help the townsfolk after the closure of the mills. The mills' demise leaves families homeless with devastating consequences. Robert's health deteriorates.
- 2:05am
Flying Gardener
Shorts: Devon GardenerChris Beardshaw visits inspirational gardens by helicopter. He travels to Devon to help Carol Cooper and her husband Stephen develop a beautiful spring woodland garden.
- 2:20am
Himalaya With Michael Palin
Series 1 Episode 4: The Roof of the WorldLeaving Everest base camp to take the high road to Lhasa to see what the Chinese have done to Tibet. Michael sees that religion is once again tolerated, while the old Tibetan centre of the city is being replaced with modern Chinese shopping malls and nightclubs. Following the pilgrims to the holy Namtso Lake, he gets warm in a hot spring before learning how to milk a yak with a nomad family.
- 3:20am
This Is BBC Four
BBC FOUR is the BBC channel for people who want more. More depth, more range, more to stimulate the mind.