Samsung Electronics has started domestic sales of televisions powered by its Tizen operating system and plans to add washing machinesand other appliances to the range of products that use the software. Samsung said sales of Tizen-powered ultra-HD TVs began Thursday in South Korea. The new TVs come in four sizes from 55 inches diagonally to 88 inches. The smallest model costs 5.49 million won ($5,000).

Currently Samsung is focusing on pushing the Tizen OS into living rooms and eventually into kitchens and other corners of the home.

After startup, the screen of Tizen-powered televisions displays most recently used apps and recommendations. The company said users of Samsung's Galaxy mobile devices can stream content from their phones to the television with one tap on the screen.

Samsung has also increased the number of games, videos and movie offerings.