NEW YORK (Variety) - Calling the proposed combination of ABC News and CNN "a two-headed monster," Fox Entertainment and News Corp. chairman Rupert Murdoch dismissed the news channel competition and waxed confidently to shareholders and the press Thursday about his two companies' prospects for the coming year. "A CNN-ABC merger would be great" Murdoch told a press conference after the Fox shareholder annual meeting in New York on Thursday. The confident chief ventured that a complicated combination of CNN and ABC News would weaken both. "It would be very difficult to execute without losing their identify. It commoditizes their product...