Following the inescapable trend of conglomeration, growth-driven activities such as mergers and acquisitions in the media industry have been the major market strategies for media companies in recent years. However, even though synergy may result in profit-growth from economic perspectives, researchers in academia of journalism and communication should focus on those topics such as how synergy bias of media conglomerates affect the content production of their news media from the viewpoint of the role of news media in a democratic society. This study is devoted to exploring the following question: What are synergy biases in news reports caused by synergy strategies of media conglomerates? The study found that there was averagely 30 seconds of synergy bias news within one-hour news reports. Most of synergy bias news appeared in the time slot of the late night news. In addition, the most often appearing content of synergy bias news is television channel family's activities and programming.