ARLINGTON, Va.--(BUSINESS WIRE)--Graham Holdings Company (NYSE: GHC) announced today that in connection with the previously announced intention to separate Cable ONE, Inc. (“Cable ONE”) from Graham Holdings Company, Cable ONE plans to raise an aggregate of $550 million of debt through an offering of $450 million of senior unsecured notes and by entering into a senior secured term loan facility. Graham Holdings Company will not be a guarantor or otherwise provide credit support for the notes or