This episode's headline: Comparable Worth; In Search of Excellence; Essays on Buchenwald. The guests include In Washington: CLARENCE PENDLETON, Jr., Chairman,; U.S. Civil Rights Commission; DIANA ROCK, Public Employees Union; In New York: TOM PETERS, Co-Author, In Search of Excellence; MICHAEL SILVA, President, Bennett Enterprises; Essays by: JOHN GLUSTROM, World War II Veteran; ELIE WIESEL, Author; Reports from NewsHour Correspondents:. Byline: In New York: ROBERT MacNEIL, Executive Editor; CHARLAYNE HUNTER-GAULT, Correspondent; In Washington: JIM LEHRER, Associate Editor