The giant SF in this scene, (the prop, not the legend), and the A's emblem in the next photo were built for a Comcast/Sportsnet set by SF Landmark for the 2012 season. They're both about 3 feet tall and 3" thick and made to look like embroidered cap monograms. We carved foam for the basic shape then slowly wrapped it in miles of thread, custom matched to the team colors.
And for this 2013 season we built the deep illuminated bezel surrounding the monitor on the left. Color changeable for Giants or A's!