A live taping of the TV program World Harmony: Can It Happen? takes place at 6 p.m., Friday, April 6. The program begins with a celebration of peace advocate Mary MacEwan's 100th birthday. Afterward, a panel discusses "Are Marijuana and Hemp Good or Bad?" Panelists include Dr. David A. Ruben, Dr. Kevin S. Lewis and Jon Gettel, president of AZ4NORML. Arrive by 5:45 p.m. for seating in Studio A. Free. View rebroadcasts on Cox digital Channel 120 and Comcast Channel 72. Call 722-2837 for more info.