As the children’s show turns 55, we’re naming the best Muppets of the regular cast, from the goofy to the Grouchy.

Sesame Street has produced nearly 5,000 episodes, won 193 Emmy awards, and now broadcasts in 150 different countries. But these five milestones in its first 50 years say so much about its success.

SVP of Marketing and Development Aaron Bisman shares how the "magic" of 'Sesame Street' connects across five generations ...