In today’s TV news roundup, Netflix released a trailer for “Bookmarks: Celebrating Black Voices,” and National Geographic’s “Life Below Zero” set its Season 13 premiere date.

Dates

National Geographic’s “Life Below Zero” will return for its 13th season on Sept. 7 at 8 p.m. Et / 5 p.m. Pt, followed by a new spinoff series, “Life Below Zero: Next Generation.” The second episode of each show will air back to back the next night, with both shows returning to their Tuesday time slot for the rest of the season. “Life Below Zero” follows the extreme lifestyle of Alaskan residents, facing off whiteout snowstorms, frozen terrains and man-eating carnivores, while the spinoff introduces Alaskans who have returned to the wilderness, after trying out contemporary life. The “Life Below Zero” franchise is produced by BBC Studios’ production unit for National Geographic.

First Looks

Netflix released a trailer for “Bookmarks: Celebrating Black Voices,