1975 | 1 Episodes

Season 1 of Thalassa premiered on September 27, 1975.

2015 | 3 Episodes

Season 41 of Thalassa premiered on January 2, 2015.

2016 | 16 Episodes

Season 42 of Thalassa premiered on January 8, 2016.

2017 | 9 Episodes

Season 43 of Thalassa premiered on January 20, 2017.

2018 | 5 Episodes

Season 44 of Thalassa premiered on January 22, 2018.

- | 3 Episodes

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2021 | 1 Episodes

Season 46 of Thalassa premiered on January 17, 2021.