Hi, I'm Ron Pisaneschi. My Pick for next time is American Masters: "A Fierce Green Fire." This documentary explores the environmental movement, spanning 50 years of grassroots and global activism. Connecting all the major aspects of environmentalism, the film chronicles the largest movement of the 20th century and its continuing impact. From halting dams in the Grand Canyon to battling 20,000 tons of toxic waste at Love Canal, the film tells vivid stories about people fighting — and succeeding — against enormous odds. It is narrated by Robert Redford, Ashley Judd, Van Jones, Isabel Allende and Meryl Streep. That's American Masters: "A Fierce Green Fire," Tuesday, April 22nd at 9:00 p.m. MT/PT. And that's my Pick for next time.