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Horizon

BBC TwoDocumentary · 62 seasons

7.5TMDB

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Season 55

60mE1My Amazing Brain: Richard's WarMon, Feb 5 · ★ 7.0
60mE2Teenagers vs Cancer: A User's GuideTue, Jun 26
60mE3How to Build a Time MachineTue, Jul 10 · ★ 6.0
60mE4Spina Bifida & MeThu, Jul 26
60mE5Jupiter RevealedTue, Aug 7 · ★ 7.5
60mE6Stopping Male SuicideWed, Aug 22 · ★ 7.0
E7E7A Week Without Lying - The Honesty ExperimentWed, Aug 29 · 60 min · ★ 7.0
60mE8The Placebo Experiment: Can My Brain Cure My Body?Thu, Oct 4 · ★ 8.0
60mE9Body Clock: What Makes Us Tick?Thu, Oct 11 · ★ 7.0
60mE10Avalanche: Making a Deadly SnowstormThu, Oct 18 · ★ 8.0
60mE11Vitamin Pills: Miracle or Myth?Thu, Oct 25 · ★ 8.0
60mE12Diagnosis on Demand? The Computer Will See You NowThu, Nov 1 · ★ 8.5
60mE13The Contraceptive Pill: How Safe Is It?Wed, Nov 21 · ★ 8.0

Questions

Where can I watch Horizon?

Horizon streams on PBS.

How many episodes are in Season 55?

Season 55 has 13 episodes.

Episode roomHorizon S4 E21

Horizon · Season 4 · Episode 21

The Life and Death of the Pine Processionary

Tuesday, November 21 · 60 min

Mark watched

Horizon reports on the problem of exterminating the pine processionary caterpillars infestation from the pine forests of Provence, Canada.

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