Sezona 1

Slike

#	Slika	Naslov	Emitirano
1		The Making of a Natural History Film	3. ožu 1974.
2		Where Did the Colorado Go?	10. ožu 1974.
3		Whales, Dolphins, And Men	17. ožu 1974.
4		The Search For Life	24. ožu 1974.
5		Last of the Cuiva	31. ožu 1974.
6		Strange Sleep	7. tra 1974.
7		The Crab Nebula	14. tra 1974.
8		Bird Brain: The Mystery of Bird Navigation	21. tra 1974.
9		Are You Doing This For Me, Doctor?	28. tra 1974.
10		The First Signs of Washoe	5. svi 1974.
11		The Case of the Midwife Toad	12. svi 1974.
12		Fusion: The Energy Promise	19. svi 1974.
13		The Mystery of the Anasazi	26. svi 1974.