Sezona 4

Slike

#	Slika	Naslov	Emitirano
1		Hitler's Secret Weapon	5. sij 1977.
2		The Hot-Blooded Dinosaurs	12. sij 1977.
3		What Price Coal?	19. sij 1977.
4		The Sunspot Mystery	2. velj 1977.
5		The Plastic Prison	9. velj 1977.
6		Incident at Brown's Ferry	23. velj 1977.
7		Bye Bye Blackbird	2. ožu 1977.
8		The Pill for the People	9. ožu 1977.
9		The Gene Engineers	16. ožu 1977.
10		Sociobiology : The Human Animal	23. ožu 1977.
11		The Wolf Equation	30. ožu 1977.
12		The Dawn of the Solar Age	20. tra 1977.
13		The Business of Extinction	20. tra 1977.
14		The Red Planet	27. tra 1977.
15		The Tongues of Men : Disaster at Babel (1)	11. svi 1977.
16		The Tongues of Men : A World Language? (2)	18. svi 1977.
17		Linus Pauling: Crusading Scientist	1. lip 1977.
18		Across the Silent Barrier	22. lip 1977.
19		The New Healers	29. lip 1977.