Associated Press
This product image provided by Roku shows the Roky 3. Roku is plugging headphones and several other new features into its latest set-top box for streaming Internet video to TVs, a move that amplifies its effort to upstage Apple’s better-selling player. The Roku 3 box going on sale Wednesday, March 6, 2013 also includes a more powerful search engine to find movies, TV shows and music more quickly and new menu for perusing the more than 750 online services available through the device. (AP Photo/Roku)

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