Generations of kids have learned their letters and numbers from watching the furry monsters and fuzzy characters of Sesame Street. On the show's 36th season, which started in early April, the residents of this not-so-normal neighborhood are tackling a new topic: healthy habits. Eating right, exercising and getting plenty of sleep are some of the new story lines the Muppets are exploring in the show's new "Healthy Moments," with some famous visitors stopping by to help out.