A live taping of World Harmony: Can It Happen? takes place from 6:30 to 7:30 p.m., Friday, April 5. Peace Activist Mary MacEwan, age 101, is honored before the main program, which features members of a UA student group, the Olympia Academy, devoted to critical thinking. Arrive at Studio A by 6:15 p.m. to watch the taping. For more information, call 722-2837.