Steam Big Picture Beta Launched and Trailer

New mode of Steam designed for display on televisions; works with game controllers
A major update to the Steam gaming platform, called Big Picture, has gone live, Valve announced - it lets gamers access all of their Steam games on a television. Big Picture has been designed to be used with a traditional game controller, while also fully supporting keyboard and mouse input.
Steam gamers can experience Big Picture by connecting their PC or Mac to a TV, typically with a single HDMI cable. Access to the complete Steam store is included, as is the Steam Community. In addition to their complete library of Steam games, each user's cloud files, Steam Workshop content, account information and preferences will be accessible automatically in the new mode.
A video is now locally mirrored.