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Wednesday at 9:00 p.m. on OPB TV

Traces of WWI's most devastating, ultra-secret tunneling operation, revealed.

Oregon Art Beat

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

Meet artists Laura Heit and James Allen, plus Portland personality Boaz Frankel behind his bike-mounted talk-show desk on the Pedal Powered Talk Show.

Oregon Field Guide

Thursday at 8:30 p.m. on OPB TV

A tour of northwest wilderness areas marks the 50th year of the act that preserved them.