Topic - Sony Pictures Technologies

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In this publicity photo provided by Sony, John Legend performs live at Sony 4k: Live Beyond Definition, in Los Angeles. Sony's first ultra-high-definition television, a massive 84-inch set that retails for $24,999.99, features nearly four times the resolution of typical high-definition TVs. (AP Photo/Sony, Joe Kohen)

Sony starts evolution of 4K TV resolution

By Derrik J. Lang - Associated Press

Sony introduces ultra-high-definition video player

By DERRIK J. LANG - Associated Press