CNBC was originally established on April 17, 1989, as a joint venture between NBC and Cablevision as the Consumer News and Business Channel. Two years later, in 1991, the network acquired its main competitor, the Financial News Network, a move which expanded both its distribution and its workforce. Cablevision subsequently sold its stake to NBC, giving NBC sole ownership. As of February 2015, CNBC is available to approximately 93,623,000 pay television households (80.4% of households with television) in the United States. In 2007, the network was ranked as the 19th-most valuable cable channel in the United States, worth roughly $4 billion.