Steam's Big Picture Mode -- a TV- and controller-friendly version of Valve's widely used digital gaming service -- is the first volley in Valve's big living room push.
The casual nature of that relationship is reflected in Valve's attitude about releasing the new mode -- Team Fortress 2's VR-enabling update in the coming weeks is essentially a giant beta test in which Valve will measure and analyze the way TF2 players interact with virtual reality hardware.