GameTrailers TV with Geoff Keighley

Season 3 Episode 21

Portal 2

Aired Daily 11:55 PM Aug 20, 2010 on Spike TV
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Episode Summary

Portal 2
GTTV invades Valve headquarters for the exclusive unveiling of a new chapter in the Left 4 Dead saga and world premiere footage from Portal 2. Plus, Ken Levine scales the heights of BioShock Infinite....

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