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Horizon

BBC TwoDocumentary · 62 seasons

7.5TMDB

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Season 21

E1E1The Intelligence ManMon, Jan 9 · 60 min

E2E2Microworld!Mon, Jan 16 · 60 min

E3E3A New Green Revolution?Mon, Jan 23 · 60 min

E4E4Spies in the WiresMon, Jan 30 · 60 min

E5E5Valley of the IncaMon, Feb 13 · 60 min

E6E6The Conquest of ParasitesMon, Feb 27 · 60 min

E7E7Reflections on a RiverMon, Mar 5 · 60 min

E8E8A Normal FaceMon, Mar 12 · 60 min

E9E9Prisoners of IncestMon, Mar 19 · 60 min

E10E10Signs of the Apes, Songs of the WhalesMon, Mar 26 · 60 min

E11E11Professor Bonner and the Slime MouldsMon, Apr 9 · 60 min

E12E12The Mind of a Murderer: The Case of the Hillside StranglerMon, Apr 16 · 60 min

E13E13The Mind of a Murderer: The Mask of MadnessMon, Apr 23 · 60 min

E14E14A Cruel InheritanceMon, Apr 30 · 60 min

E15E15The Malvern LinkMon, May 7 · 60 min

E16E16Contented Cows and Other AnimalsMon, Nov 5 · 60 min

E17E17Picking WinnersMon, Nov 12 · 60 min

E18E18The Brain PuzzleMon, Nov 19 · 60 min

E19E19Global VillageMon, Nov 26 · 60 min

E20E20IvanMon, Dec 3 · 60 min

E21E21A Mathematical Mystery TourMon, Dec 10 · 60 min · ★ 7.0

E22E22SuperchargedMon, Dec 17 · 60 min

Questions

Where can I watch Horizon?

No streaming service lists Horizon yet. TMDB lists where it streams in each country.

How many episodes are in Season 21?

Season 21 has 22 episodes.