Conventional media are to a large extent shaped by the government.
Often, news reports are little more than cut and paste jobs from news releases by politicians, police, etc. The government influences conventional media both as a news source, as an advertiser and as a legislator. Its taxation, allocation of frequencies, licensing policy and general bureaucracy creates cartels that effectively stop newcomers from entering the market. Although anti-trust and cartel legislation and the government's veto power over mergers and acquisitions are supposed to prevent monopolization, the main concern of the government is not to promote competition, but to enforce its own control, as is evident in restrictions on foreign investment and exports of encryption software. All this government influence makes the conventional media biased, in the sense that they are inclined to endorse the political status quo, in the hope of maintaining their own privileged status.