Internet-protocol TV (IPTV) continues to climb at a steady rate globally -- nearly 5% in the first quarter of 2013 -- in line with overall pay TV growth platforms.New TV subscriptions amounted to 4.6 million -- now totaling 100 million TV subscribers as of the first quarter of 2014, according to U.K. broadband research company Point Topic. This is 4.8% higher than the first quarter of 2013.East Asia territories remain the biggest gainers globally -- adding some 2.6 million subscribers, for a 5.7% growth rate. Eastern Europe posted the biggest growth on a percentage basis -- 11.6%, or 630,000 subscribers.China continues to be the biggest individual country for IPTV -- at 32.7 million subscribers. This is followed by France at 14.8 million; the U.S. with 12.3 million; South Korea at 9.1 million; Japan with 4.5 million; Russia at 3.6 million; and Germany with 2.7 million.Other research shows that IPTV is growing at about the same rate as all worldwide pay TV services -- up 5% in subscribers in 2013 over the year before.ABI Research said in April of this year there were 901.1 million total pay TV subscribers -- representing almost $250 billion in pay TV revenue. By 2019, the total number of pay TV subscribers will be 1.1 billion.