Think you know everything there is to know about Sesame Street? You don’t. You might know that Frank Oz turned down an offer to play Big Bird, but you probably don’t know that until a last minute change of heart by NASA, Big Bird was supposed to go to space aboard the Challenger. Or you may know that Oscar the Grouch got his voice from a cantankerous cabbie, but you’d be surprised to learn that a fire in his trash can almost led to Caroll’s untimely demise. Caroll’s stories are the stuff of legend.