article_snippet: Manufacturers including LG, Samsung and Sony have spent millions of pounds developing the technology – said to be four times sharper than existing HD TV.
article_snippet: The first 'HD Ready' sets and services emerged in 2006 to be followed by a new generation of sharper still 'Full HD' TVs in 2011 and then 3D televisions in 2013.
article_snippet: Since then, there has been the super slim OLED screens that mean the sets can be hung on the wall like a work of art, together with curved screens claimed to improve viewing angles.
article_snippet: And the innovations do not stop at 4K, as leading manufacturers are starting to demonstrate the new 8K TVs, which are eight times sharper than conventional HD sets and will be arriving in stores within two years.