I am in the process of building myself a Steam Box - a PC running Windows 8 and Steam that is going to be plugged into my TV without a keyboard and mouse attached. The only form of input plugged into this machine is going to be a wireless XBox 360 controller, which supports XInput.
I want to make it so that when my PC starts up, it will start Steam (which is already covered in many questions on this site) - but I would like Steam to start in Big Picture mode straight away, essentially skipping the need to click on the 'Big Picture' link to start it.
How can I make Steam launch in Big Picture mode?