The 4K TV set is ultra-high definition with unbelievable clarity. It packs twice the horizontal and vertical resolution of full HD TVs, the 1080p ones. It has a resolution of 3840 x 2160 pixels, compared with the 1920 x 1080p of a full HD set.A HD TV packs in 2 million pixels, whereas an ultra-high definition TV packs in 8 million pixels. These TVs had the sizes of 82 inches plus to accommodate high pixel density.It is now available in size 55-65 too. They are too large for most households.Broadcasters are still stuggling with full HD channels. It is not possible for them to beam 4K content, which is four times heavier right now.The content is supported by a pre-loaded 4K media player.There is also 8K in the offing, which is 16 times the number of pixels of full HD.Ultra-high TV has a frame rate too.The TV gives sharper images, has better detailing and superior texture. High frame rate makes moving images more natural.

DTH providers like Tata Sky and Videocon D2H offer 4K set top boxes.Internet is another source of 4K content.The data consumption is four times more, and there must be YouTube application supporting 4K content. Ther are services such as Netflix and Amazon Prime and these offer 4K content, but these are not available in India. Apple TV and Google Chromecast media players too do not support 4K. The downloaded content is to be stored on hard disk.

In future, 4K may become mainstream, and it is prudent to invest in a 4K TV.The HD content too looks much better on 4K.