 Since 2010, the public broadcaster is funded by government grants and taxes paid by private nationwide TV broadcasters and telecommunications companies.In the United States, historically, privately owned "commercial" radio stations selling advertising quickly proved to be commercially viable enterprises during the first half of the 20th century; though a few governments owned non-commercial radio stations (such as WNYC, owned by New York City from 1922 to 1997), most were owned by charitable organizations and supported by donations.The pattern repeated itself with television in the second half of that century, except that some governments, mostly states, also established educational television stations alongside the privately owned stations.