Tuotantokausi 1

Kuvat

#	Kuva	Nimi	Esitetty
1		The Making of a Natural History Film	3.3.1974
2		Where Did the Colorado Go?	10.3.1974
3		Whales, Dolphins, And Men	17.3.1974
4		The Search For Life	24.3.1974
5		Last of the Cuiva	31.3.1974
6		Strange Sleep	7.4.1974
7		The Crab Nebula	14.4.1974
8		Bird Brain: The Mystery of Bird Navigation	21.4.1974
9		Are You Doing This For Me, Doctor?	28.4.1974
10		The First Signs of Washoe	5.5.1974
11		The Case of the Midwife Toad	12.5.1974
12		Fusion: The Energy Promise	19.5.1974
13		The Mystery of the Anasazi	26.5.1974