Ever since I saw The Big Bang Theory episode “The Apology Insufficiency” I’ve been wondering where to find the black T-shirt Sheldon’s wearing with the purple/green Batman symbol. Seems like a lot of other people have too. Luckily, it just came through my Google Reader from Shirtoid! Shirtoid calls it the Batman Gradient shirt while 80s Tees, the site actually selling it for $24, has simply dubbed it Sheldon’s Batman Shirt.