Which PBS children's series, debuting in 1969, features Muppets created by Jim Henson and has taught generations of children literacy, numeracy, and social skills?

• A Mister Rogers' Neighborhood
• B Sesame Street ✓
• C Barney & Friends
• D Blue's Clues

Sesame Street has won more Emmys than any other show, been adapted in over 150 countries, and pioneered the use of educational research in children's television production.