Horizon

tv show

1170 total episodes

61 seasons

First Aired February 04, 1964

Genres:

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

A Matter of Self-Defense poster unavailable

Season 11 - Episode 1 - 1h 0m

January 07, 1974

This episode of Horizon explains how our body fights infections and cancers and brings us up-to-date on recent research in immunology.