Where To Watch The Nature of Things Season 19
- 11978-09-24September 24, 1978
- 2Clockwork AtomOctober 1, 1978
- 3This Will Do for TodayOctober 8, 1978
- 4Island of MonkeysOctober 15, 1978
- 51978-10-29October 29, 1978
- 61978-11-05November 5, 1978
- 71978-11-12November 12, 1978
- 8Sleep (1 of 2)November 26, 1978
- 9Dreams (2)December 3, 1978
- 10CharlieDecember 17, 1978
- 11The Search Smallpox EradicationDecember 24, 1978
- 12The CajunsDecember 31, 1978