4K resolution
As noted above, DCI 4K is 40962160, while 4K UHD is 38402160, producing a slight difference in aspect ratio rather than a significant difference in resolution. Traditional displays, such as LCD or OLED, are 3840 pixels across the screen, with each pixel being 1/3840th of the screen width. They do not overlap—if they did, they would suffer reduced detail. The diameter of each pixel is basically 1/3840th of the screen width or 1/2160th of the screen height - either gives the same size pixel. That 38402160 works out to 8.3 megapixels, the official resolution of 4K UHD (and therefore Blu-ray UHD discs).
Direct-to-home television in India
Videocon d2h began offering a preview of 4K Ultra HD content on its DTH service in July 2014, and launched India's first 4K Ultra HD channel on 26 January 2015. The channel is not dedicated to single genre and instead broadcasts video on demand (VOD), lifestyle and travel content, sports, infotainment, concerts and Hollywood films. The channel also telecasts 4K content created by international broadcasters. The first programs telecast on the channel were live broadcasts of select matches from the 2015 ICC Cricket World Cup. Tata Sky also offered live broadcasts of select matches in 4K.