The US has the heaviest television viewership in the world at 5 hours per day. It also has high radio listenership. The media system is mostly privately owned by wealthy individuals and large corporations. There is no direct government control of newspapers but the broadcast media is regulated by the FCC. Studies have shown political bias in mainstream media with Republican sources favored over Democrats and a lack of diversity among sources. Journalism education began at the University of Missouri in 1908.