Sealab 2020 (1972)

Adventure · Animation · Family

Commanded by Captain Michael Murphy, Sealab is dedicated to the exploration of the seas and the protection of marine life. Among other things, the crew of Sealab faced such challenges as attacks from sharks and giant squids, potential environmental disasters, and threats to Sealab and marine life from shipping.

IMDb rating: 6.2 (339 votes)
Episode average: 6.0 -0.2 vs IMDb
Seasons: 1
Language: EN
Type: TV series

Rating trend: this show's seasons do not settle into one shape. Rising Shows ranks whole shows by the shape of their rating trend rather than one average score, which is how you find a show that got better rather than a show that started well.

Browse shows by rating shape → Open in Rising Shows app → View on IMDb

Ratings refreshed Oct 3, 2026 · 1 season indexed

Cast

Seasons

Season 1 (1972)

6.05 avg 13 episodes 6.1 → 6.7 23 min avg

Season 1 episodes - IMDb ratings
#	Title	Rating	Votes
1	Deep Threat	6.1	29
2	Lost	5.4	20
3	Green Fever	7.2	21
4	The Singing Whale	6.2	17
5	The Shark Lover	6.3	18
6	The Basking Shark	6.0	17
7	Where Dangers Are Many	5.8	16
8	Backfire	5.5	16
9	The Deepest Dive	6.1	15
10	The Challenge	6.1	16
11	Collision of the Aquarius	6.1	14
12	The Capture	5.1	13
13	The Arctic Story	6.7	15