WILLIAM DOZIER, a former writer's agent who became a movie and television executive with credits ranging from TV's "Batman" to the Ingrid Bergman-Cary Grant film, "Notorious," died Tuesday in Santa Monica, Calif., of respiratory failure at age 83 . . . TWO JOURNALISTS with Colombia's El Espectador, long a target of violence for its anti-drug crusades, were ambushed and killed by machine-gun fire while out on a story north of the capital, the newspaper reported . . . WORKMEN in Hungary's southern city of Szeged have begun dismantling two gigantic monuments honoring the Red Army and its liberation of Hungary from the Nazis, the MTI news agency reported.