Lou Wolf, a TV video and audio engineer, died Jan. 27 following a battle with brain cancer at the USC/Norris Cancer Center in Los Angeles. He was 67.Wolf, a native of St. Louis, came to California in 1940. In 1950, he began his career as an audio engineer at KTLA-TV. In 1953, after serving three years in the U.S. Air Force, he returned to KTLA as a video engineer. He went on to become technical director and finally chief engineer. In 1982, Wolf left KTLA to join Universal City Studios, where he served as director of videotape operations and later as director of video services. He also served as a consultant to Universal following his retirement in 1993. He is survived by his wife, Barbara, as well as two sons, a grandson and two sisters.