Horizon: 1975
Season 12 Lore Primer
Key plot threads, lore context, and character stakes you need to remember before diving into this season.
- Directly follows the overarching narrative developments of Horizon Season 11.
- Faction dynamics and core character alliances shift under escalating external stakes.
- Crucial mysteries introduced previously reach key turning points and narrative reckonings.
- Sets up serialized story arcs that build directly toward the climactic season finale.
Episode Guide
Season 12 Progress Shield
The Killer Dust
Jan 20, 1975 · 60 min
This investigative report by Horizon covers an investigation into the deaths of people who inhaled asbestos dust at Acre Mill, Yorkshire, England.
A Time to Be Born
Jan 27, 1975 · 50 min
Investigates the growing tendency in hospitals to induce childbirth by injecting hormones into mothers. The practice has become increasingly widespread in recent years, and this fi
The Unsafe Sea
Feb 10, 1975 · 60 min
This episode of Horizon examines the problems of ship safety in the English Channel.
The Change of Life
Feb 17, 1975 · 60 min
Horizon investigates the symptoms of menopause and the various degrees in which it occurs.
Project Fido
Feb 24, 1975 · 60 min
This episode of Horizon shows the peril to man of the ever increasing dog population in the western world.
The Planets
Mar 10, 1975 · 60 min
By the end of 1974, Mars, Venus, Mercury and Jupiter had all been visited by spacecraft. For the first time scientists saw in sharp detail the continents, mountains, valleys and vo
The Long, Long Walkabout
Apr 7, 1975 · 60 min
This report by Horizon covers an investigation by a group of Australian scientists that looks into the origins and history of the Australian Aborigines.
The Overworked Miracle
Apr 14, 1975 · 60 min
This report by Horizon describes the resistance to antibiotics, fast growing in all countries, and the dangers it could mean for the future.
Not the Cheapest, But the Best
Apr 21, 1975 · 60 min
Horizon investigates the life and work of the great engineer, Isambard Kingdom Brunel.
A Spoonful of Roughage
Apr 28, 1975 · 60 min
Horizon explores the effect of fibre in diet on the diseases of western world.
Brain Poison
May 5, 1975 · 60 min
Horizon presents an investigation into the effects on health of lead in the urban atmosphere.
The Bulldog's Last Bark?
May 12, 1975 · 60 min
This is a Horizon report on the building of the British military deterrent from the first decision to make it in 1941 until the present state of lethargy.
Benjamin
May 19, 1975 · 60 min
This episode of Horizon follows the progress of Benjamin Pile, born on 22 November, 1974, at Oxford in Britain.
The McMaster Experiment
Jun 2, 1975 · 60 min
This report by Horizon covers an experiment at McMaster University Medical School, in Ontario, Canada.
The Glazed Outlook
Jun 9, 1975 · 60 min
Horizon investigates the attempts by the University of Newcastle in England to define and create an ideal living and working environment.
The Three Chord Trick
Jun 16, 1975 · 60 min
Horizon explores the psychology of music, as it explains why music has such a powerful emotive effect in every society.
The Cleanest Place in the World
Jun 23, 1975 · 60 min
This report by Horizon brings you scientists that are using Antarctica as a giant natural lab to study who has polluted Earth most; man or nature.
Strange Sleep
Jun 30, 1975 · 60 min
Horizon investigates the discovery of gaseous anaesthetic from 1840 until the early years of 20th century.
The Greatest Advance Since the Wheel?
Jul 7, 1975 · 60 min
Horizon reports on the history of superconductivity, from discovery, to the present.
How Do You Read?
Jul 14, 1975 · 60 min
In this documentary, Horizon reports on the reading process; how it works for the fluent, and how it should be taught.
The Sickly Sea
Jul 21, 1975 · 60 min
This episode of Horizon describes the various aspects of the pollution problem of the Mediterranean Sea.
Happy Catastrophe
Jul 28, 1975 · 60 min
In this Horizon episode, Rene Thom's mathematical discovery of the catastrophe theory is investigated.
To Die, to Live - The Survivors of Hiroshima
Aug 4, 1975 · 60 min
This documentary by Horizon commemorates the dropping of the A-bomb on Hiroshima, Japan on August 6, 1945.
Cannabis
Aug 11, 1975 · 60 min
Horizon takes a look at the history of cannabis and the research on the effects of smoking marijuana.
Meditation and the Mind
Aug 18, 1975 · 60 min
This is a report by Horizon on Transcendental Meditation, or TM, brought to the West by the Maharishi Mahesh Yogi.
The Trobriand Experiment
Dec 29, 1975 · 60 min
This documentary by Horizon is about the Trobriand islanders, whose culture is based on the Kula, a communication system of giving and receiving.