A new high-resolution television format has been approved by the UN’s communication standards setting agency. Broadcasts in 8K will offer a resolution of 7,680 by 4,320 pixels - roughly the equivalent of a 32 megapixel photo. That is 16 times as sharp as current HD TVs offering about 2MP resolutions. Japanese broadcaster NHK showed off the technology in London during the Olympics, where audiences said it gave them a sense of being at the events. The firm has developed three cameras that can captures the higher resolution - which it calls Super Hi-Vision - at 60 frames per second but aims to double that to 120 frames per second. By contrast the BBC currently broadcasts HD TV programmes at 25 fps.