On Tonight
7:00 PM
Dr. Kenny Broad dives into blue holes — underwater caves that formed during the last ice age.
8:00 PM
A year after the deadliest domestic airline accident in seven years, FRONTLINE investigates the crash of Continental 3407, the rise regional and low-cost carriers and if the aviation system is being stretched beyond its capacity to deliver service that is
9:00 PM
Examines the forgotten legacy of Melville Herskovits, a controversial Jewish anthropologist whose writings in the 40s and 50s challenged widely held assumptions about race and culture.
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General Series
Acceptable Risk: The Story of the Jenny Lake Climbing Rangers
Airs Thursday, October 29 at 7:00 PM
When a climber falls and is in need of a rescue in Grand Teton National Park, the call goes out to the Jenny Lake Climbing Rangers. One-of-a-kind footage captured during rescue operations shows how the elite mountain rescue team of today gets the job done.
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