Jonathan Bird's Blue World (2008)

The full series on its BlueWorldTV YouTube channel Underwater cinematographer Jonathan Bird takes viewers along on dives around the world in this Emmy-winning public television series, and the episodes are free on YouTube. Each one is a proper adventure with a science lesson inside it, pitched for all ages, which makes it the best family pick on the list. The nonprofit behind it also publishes educator guides. Start with Giant Pacific Octopus Adventure, a 21-minute episode that visits octopuses at aquariums in Boston and Seattle, then joins dive surveys of wild octopuses in Puget Sound, where Bird witnesses a fight between two of them.