Tuesday, July 24, 10 p.m. — Probe the battle between those who depend on the Bristol Bay for salmon and those who want to dig an open-pit mine at its headwaters.

Wednesday, November 23 at 8 p.m. — Revel in the resurgence of the bald eagle, the American emblem that’s come roaring back from the brink of extinction.

Monday, February 22 at 9 p.m. — When her plane disappeared without a trace, the “First Lady of the Air” was instantly transformed into an American legend.