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Horizon

Horizon (1964)

February. 04,1964

8.5

TV-PG

| Documentary

Horizon

Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.

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Horizon

1964 / TV-PG

Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.

Seasons & Episode

Seasons 61 : 2025

4 Episode

Episode 1 - Confessions of a Brain Surgeon

August. 18,2025

Top brain surgeon Henry Marsh is facing his own life-threatening diagnosis. He reveals the huge risks and emotional impact of a job filled with difficult life-and-death decisions. This heartwarming portrait of an eccentric surgical hero facing the end of his life reveals the truth about brain surgery and its human impact, with devastating emotional power and life-affirming honesty.

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It's the Great Pumpkin, Charlie Brown

Episode 2 - Disease X: Hunting the Next Pandemic

September. 22,2025

Virologist Dr Chris van Tulleken embarks on a global investigation into the hunt for the pathogen that could trigger the next pandemic and the cutting-edge science developed to tackle it. Known only as "Disease X", it is shrouded in uncertainty. Its origin is unknown, how it could spread is unclear, but its impact could be much more severe than Covid-19. To uncover what Disease X might be, where it could emerge and what traits it needs to spread, Chris follows the paths of past deadly viruses. He visits the ground zero of the Nipah virus in Malaysia, which inspired the film Contagion. He also heads to the front line of the ongoing bird flu outbreak in American dairy cattle in California.

Episode 3 - Secrets of The Brain (1)

September. 29,2025

Theoretical physicist Professor Jim Al-Khalili goes on a journey through 600 million years of evolution to uncover how the human brain, the most complex structure known in the universe, came to exist. With some 100 billion neurons and over 100 trillion connections - more than all the stars in the Milky Way - the human brain is one of nature's greatest achievements. But how did something so incredibly sophisticated evolve from its simple beginnings?

Episode 4 - Secrets of the Brain (2)

October. 06,2025

Jim watches primates in action to see how they tackle survival challenges, revealing the clever tricks that shaped the brain's thinking. But the real breakthrough came when brains learned to be social. Teaming up with his wife, Jim investigates how relationships and friendships made people more intelligent. With AI getting smarter by the day, Jim wants to know what makes biological brains so special. Through scans, fossil discoveries and cutting-edge research, he uncovers what makes the brain so hard to emulate.

Seasons 60 : 2024

1 Episode

Seasons 59 : 2022

4 Episode

Seasons 58 : 2021

4 Episode

Seasons 57 : 2020

8 Episode

Seasons 56 : 2019

6 Episode

Seasons 55 : 2018

13 Episode

Seasons 54 : 2017

15 Episode

Seasons 53 : 2016

16 Episode

Seasons 52 : 2014

18 Episode

Seasons 51 : 2013

11 Episode

Seasons 50 : 2012

16 Episode

Seasons 49 : 2011

13 Episode

Seasons 48 : 2010

15 Episode

Seasons 47 : 2009

14 Episode

Seasons 46 : 2009

18 Episode

Seasons 45 : 2008

17 Episode

Seasons 44 : 2007

9 Episode

Seasons 43 : 2006

19 Episode

Seasons 42 : 2005

20 Episode

Seasons 41 : 2004

18 Episode

Seasons 40 : 2003

19 Episode

Seasons 39 : 2002

18 Episode

Seasons 38 : 2001

11 Episode

Seasons 37 : 2000

19 Episode

Seasons 36 : 1999

14 Episode

Seasons 35 : 1998

18 Episode

Seasons 34 : 1997

15 Episode

Seasons 33 : 1996

16 Episode

Seasons 32 : 1995

20 Episode

Seasons 31 : 1994

21 Episode

Seasons 30 : 1993

21 Episode

Seasons 29 : 1992

19 Episode

Seasons 28 : 1991

23 Episode

Seasons 27 : 1990

20 Episode

Seasons 26 : 1989

20 Episode

Seasons 25 : 1988

25 Episode

Seasons 24 : 1987

22 Episode

Seasons 23 : 1986

22 Episode

Seasons 22 : 1985

16 Episode

Seasons 21 : 1984

22 Episode

Seasons 20 : 1983

24 Episode

Seasons 19 : 1982

22 Episode

Seasons 18 : 1981

27 Episode

Seasons 17 : 1980

25 Episode

Seasons 16 : 1979

25 Episode

Seasons 15 : 1978

24 Episode

Seasons 14 : 1977

23 Episode

Seasons 13 : 1976

30 Episode

Seasons 12 : 1975

26 Episode

Seasons 11 : 1974

33 Episode

Seasons 10 : 1973

32 Episode

Seasons 9 : 1972

33 Episode

Seasons 8 : 1971

32 Episode

Seasons 7 : 1970

37 Episode

Seasons 6 : 1969

37 Episode

Seasons 5 : 1968

24 Episode

Seasons 4 : 1967

23 Episode

Seasons 3 : 1966

23 Episode

Seasons 2 : 1965

24 Episode

Seasons 1 : 1964

9 Episode

Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.

Genres

Documentary

Watch on Apple TV+

With 7-Day Free Trial

Stream Now

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Horizon (1964)

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Horizon

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