DUDLEY TAFT RAISES BID FOR TAFT BROADCASTING<TFB> Dudley Taft and Narragansett Capital Inc said it was prepared to raise its bid to acquire Taft Broadcasting Co to more than 150 dlrs per share. Taft, through Theta Co, sent and letter to Taft's board of directors stating he was committed to purchasing the broadcasting company and was ready to discuss all aspects of the purchase. The company said items to be discussed included price, structure and form of consideration. Taft said he was prepared to negotiate a transaction in which Taft Broadcast shareholders would receive in excess of 150 dlrs per share.