In this archival segment from “Art Express,” Caroll Spinney discusses playing the biggest, most famous yellow bird on television, and contrasts the character with his grumpier, greener companion, Oscar the Grouch. Visiting the set of Sesame Street was a dream come true for producer Paul Larson, who grew up watching the show. This segment originally appeared on “Art Express,” a production of Mountain Lake PBS, in 2004. This piece features an exclusive behind the scenes look at “Sesame Street.” “Sesame Street” footage courtesy of Sesame Workshop.