Sony’s Blu-ray won the battle of high-definition DVD formats, but its PlayStation 3 gaming console has been losing the war over networked home entertainment. That will change this summer in the U.S., promised Kaz Hirai, president of Sony Computer Entertainment, during a Tokyo press conference. Sony will roll out on-demand movies and TV shows for download via the PS3’s PlayStation Network. It will also launch Life With PlayStation, offering news headlines and weather information with a spinning-globe user interface reminiscent of Nintendo’s Wii News.