Kim Hyun-seok, head of Samsung Electronics' TV business, poses with its SUHD 4K TV during a press conference in Seoul, South Korea, Thursday, Feb. 5, 2015. South Korean electronics giant Samsung Electronics Co. has started domestic sales of high-end televisions powered by its Tizen operating system and plans to add washing machines, fridges and other appliances to the range of products that use the software.(Ahn Young-joon)
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