The Big Bang Theory: Sheldon Cooper HD Wallpaper

Five people are sitting on a couch in a room filled with bookshelves. Sheldon Cooper is in the center, wearing a t-shirt with The Flash logo. He is holding a laptop. To his left is Howard Wolowitz in a red shirt, also with a laptop. To his right is Penny in a pink top, reading a book. Behind them are Leonard Hofstadter and Raj Koothrappali.