Characters from Sesame Street Live appear on the street by Madison Square Garden to celebrate the 30th anniversary of the live touring stage shows based on the PBS television series in New York, Thursday, Feb. 4, 2010. From left are Ernie, Bert, Elmo, Cookie Monster (foreground), Abby Cadabby, and Zoe. (AP Photo/Kathy Willens)

45 Years of Sunny Days on Sesame Street

Before “Sprout,” “Nickelodeon” and “Disney Junior” provided preschoolers with around-the-clock television entertainment (and sometimes a lit…