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Koko - The Gorilla Who Talks

Wednesday at 8:00 p.m. on OPB TV

In 1971, Penny Patterson began teaching sign language to a gorilla named Koko, unaware that this relationship would define both their lives.

Photo: © 2015 The Gorilla Foundation/ Cohn

Great Performances

Thursday at 9:30 p.m. on OPB TV

Brandi Carlile, Glen Hansard, Emmylou Harris, Los Lobos and others perform Joni Mitchell's songs for her 75th birthday celebration.

Photo: Timothy Norris

Peter, Paul and Mary at Newport 1963-65

Friday at 8:00 p.m. on OPB TV

Never-before-seen performances by Peter, Paul and Mary at the Newport Folk Festival are showcased.

Photo: Estate of David Gahr

Oregon Field Guide

Rogue River Wooden Boats, Ferment Works (3010)

Oregon Field Guide: Episode #3010

March 24, 6:30 p.m. [OPB TV]

Oregon Experience

Logger's Daughter an Oregon Experience (304)

Oregon Experience: Episode #304

March 25, 9 p.m. [OPB TV]