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Najafi, Trinity Broadcasting Network offer to buy Tegna at $20 per share

March 17 (Reuters) - Private investment firm Najafi Companies and broadcaster Trinity Broadcasting Network have offered to take U.S. regional TV station operator Tegna Inc private at $20 per share, the two firms said on Tuesday. (Reporting by Munsif Vengattil in Bengaluru; Editing by Arun Koyyur)