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“XXIX OLYMPICS,” 6 p.m., KUSA-Channel 9 — Track and field takes center stage tonight. Watch for the finish-line views provided by “rail-cams,” computer-assisted tracking cameras, operated remotely.
ALSO
“Masterpiece,” 9 p.m., KRMA-Channel 6 — “The Inspector Lynley Mysteries, Series VII: Know Thine Enemy.” A duo, blueblood Thomas Lynley (Nathaniel Parker) and his working-class sidekick, Barbara Havers (Sharon Small), must work to stop a rash of schoolgirl kidnappings. 90 minutes.
Joanne Ostrow



