A realm of sunny days where everything's A-OK, the series starts its new season with episode 4187, which features the letter H and, naturally, the number 40. With it and the 25 new hours that follow, ...

Happy birthday, "Sesame Street." You are 40 years old now, just a year younger than Mickey Mouse was the year you arrived on television - and he was semi-retired by then, while you still report to ...

That's what he decides on the "Sesame Street" season opener. A rapping real estate agent pitches him on migrating to a new habitat ("habitat," the episode's "Word on the Street"). After sizing up a ...