 In July 2013, News Corporation spun off the Fox Sports Networks and most of its other U.S. entertainment properties into 21st Century Fox.In 2014, Prime Ticket began broadcasting Arizona Diamondbacks games via Fox Sports Arizona which is available only in the Las Vegas Valley on Cox Communications and CenturyLink Prism TV.On December 14, 2017, as part of a merger between both companies, The Walt Disney Company announced plans to acquire all 22 regional Fox Sports networks from 21st Century Fox, including Fox Sports West and Prime Ticket.