Extending its leadership among online video renters, Netflix announced Monday that its streaming service will be available on Sony's PlayStation 3 game systems beginning next month. Netflix already has a similar deal in place with Microsoft's Xbox system. To access the service on their PS3s, the company said, Netflix subscribers will need to order a free "streaming Blu-ray disc," an indication that the service will offer full high-definition video. Netflix is one of the few companies that appears to be boosted by the recession, as more people decide to spend their entertainment dollars at home. Last week the company said that 9.6 percent of all households in America now subscribe to Netflix, but in some cities the percentage is much higher. In San Francisco, for example, Netflix reported that 21.2 percent of households subscribe to Netflix. The deal is also seen as a boost for Sony's lagging game system. In a statement, Jack Tretton, head of Sony's computer entertainment unit in the U.S., said, "Whether you want to watch content on Blu-ray Disc and DVD, download it from the PlayStation Network's video delivery service or stream videos instantly from Netflix, the PS3 system is the only solution that offers it all."