The inimitable dr sheldon cooper wears this t shirt so it must be cool uber nerd though he may be sheldon has one of the best collections of t shirts ever seen on tv and now you can own this one featuring the test card design as worn by sheldon in the big bang theory this design has been selected to join our premium quality t shirt range 8ball black tag 8ball black tag is the premium range from 8ball co uk best selling designs given a twist and printed onto premium t shirts and sweats