Season 17 aired between 22 Dec 1976 and 30 Sep 1977, 8 episodes.
Episodes
E01
Noah's Park
22 Dec 1976
E02
Close-up Look at a Coral Reef
29 Dec 1976
E03
Birthright Newborn
05 Jan 1977
E04
Children of the Buffalo
19 Jan 1977
E05
Geriatric Medicine
26 Jan 1977
E06
The Wind and its Power
09 Feb 1977
E07
Funk Island
16 Feb 1977
E08
Development in the Florida Everglades
30 Sep 1977