GDC is full of little shifts that lead to big changes - that's what happens when you get the greatest minds in a technological industry together. One such shift has just hit the table, and Valve is hoping it will change the prolificity of PC gaming in the household.
As it stands today, the marketing behind console gaming can include four people crowding into a delightfully-feng-shui living room, smiling brightly as they engage each other in fun games like Just Dance or the magnanimous We Play. PC gaming, on the other hand, must necessarily consist of a single player at a desk, unless you're imagining an hours-long LAN setup or the bright spot of keyboard-only games where players must physically mess with each other to win.
No longer, if Valve has their way! The newly-announced 'Big Picture' mode will aim to make it easier to have a dedicated gaming machine in your living room. So far, the only feature that's clear is that the Steam library and store will be navigable by controller, eliminating the need to have a keyboard and mouse handy in order to get somewhere on your PC-TV. Presumably, there will also be some tweaks to fonts and pixel ratios to ensure the best picture on a flatscreen.
There's still the little problem of getting your computer into the TV room without dragging a series of wires, a tower, and at least one peripheral, but I'm sure Valve will have a solution for that soon, too. It may even come with a free TF2 hat!