Howard D. Gutin, acting chairman of the Corporation for Public Broadcasting's board of directors since March, was elected chairman on Tuesday. The board also elected William Lee Hanley Jr. vice chairman. Hanley had served as chairman from November to March, when his term expired. Gutin, 57, is a San Antonio, Tex., broadcasting consultant and former public-TV broadcaster. Hanley, 47, is chairman and chief executive officer of Hanley Co., a New York oil exploration and merchant banking company.