To sound off its GDC presence, Valve today announced Big Picture mode for Steam, which offers “controller support and navigation designed for television interaction.” If the comfy couch syndrome is one of your barriers to PC gaming, well, it seems like Valve is making an effort to change that.

“Our partners and customers have asked us to make Steam available in more places. With the introduction of Steam on the Mac, and soon in Portal 2 on the PS3, we’ve done just that,” said Doug Lombardi, VP of marketing for Valve. “With big picture mode, gaming opportunities for Steam partners and customers become possible via PCs and Macs on any TV or computer display in the house.”

Further details will be discussed at “partner meetings” at GDC. Additionally, Valve plans to divulge data it gathered on the launch of Steam Microtransactions in Team Fortress 2 late last year.

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