MTM Entertainment Inc., the television company famous...

MTM Entertainment Inc., the television company famous for hits including “The Mary Tyler Moore Show,” said it will make a major announcement today . . . Officials of the Farm Credit System announced a merger that will combine nine of its banks for cooperatives into one lending institution. The new bank will begin operations Jan. 1 . . . MagneTek Inc. of Los Angeles has acquired Ohio Transformer Corp., of Louisville, Ohio, a firm specializing in large transformers and switch gear, for an disclosed price.