A live taping of World Harmony: Can It Happen? takes place from 6 to 7 p.m., Friday, Feb. 3. Mary DeCamp, Chet Gardiner, Nancy Cohen and host Stuart Thomas will preview the 30th annual Tucson Peace Fair and Music Festival. Arrive at Studio A by 5:45 p.m. to watch the taping. The program is rebroadcast on Cox Channel 99 and Comcast Channel 74. For more information, call 722-2837.