Google TV, which is powered by Google's Android software and Chrome Web browser, can be accessed using upcoming Web-enabled televisions from Sony or set-top boxes from Logitech that route Web content to existing TV sets. Sony and Logitech said the sets and boxes will be available in the United States in time for the year-end holiday shopping season and be rolled out internationally next year. Google-owned online video service YouTube is also adapting a viewer to optimize playback on Google TV. __