G4TV Shares 15 Minutes of Left 4 Dead Gameplay – Public Demo Hits Tomorrow

G4TV has posted a video containing 15 minutes of gameplay footage they recorded themselves while fighting for their lives against an army of zombies. If this doesn’t get you ready to hit “download” when the public demo of Left 4 Dead hits XBL tomorrow, you must not be a fan of four player co-op awesomeness. Hit the jump for the video.