Big Pacific

PBS | 8:00 pm

The new miniseries about the creatures of the Pacific Ocean concludes with "Behind the Scenes," a look at how the program was made. That’s no small story in such a venture, since for all the planning done by producers and cinematographers, one never can count on how the subjects and the sea will behave once the cameras actually roll. Just ask Steven Spielberg, whose challenges on the water while he was making "Jaws" are legendary.