4K resolution
4K resolution, also called 4K, refers to a horizontal display resolution of approximately 4,000 pixels. Digital television and digital cinematography commonly use several different 4K resolutions. In television and consumer media, 38402160 (4K UHD) is the dominant 4K standard, whereas the movie projection industry uses 40962160 (DCI 4K).
Ultra-high-definition television
Indian satellite pay TV provider Tata Sky launched UHD service and UHD Set Top Box on 9 January 2015. The service is 4Kp50 and price of UHD box is ₹5900 for existing SD/HD customers and ₹6400 for new customers. The Cricket World Cup 2015 was telecast live in 4K for free to those who own Tata Sky's UHD 4K STB.