Samsung ue49ku6400 exceptional true uhd tv with superior colour and the smartest features on the planet the ku6400 crystal colour uhd tv with 1500 pqi delivers amazing uhd picture quality see your favourite movies and shows come alive with amazingly bright and vivid images from a colour range of over 17 million colours with a wider range of colour you can enjoy your content in better more detailed colour shades and contrast than ever before coupled with a unique 4 stage uhd upscaling proces