Its much-loved muppets Big Bird, Cookie Monster, and Oscar the Grouch have been charming viewers for almost 50 years.
And now the children's TV show Sesame Street is introducing a new muppet character with a simpler name, and a tougher brief.
Julia, a little girl, has orange hair, a toy rabbit - and autism. She will make her Sesame Street TV debut in April on US channels HBO and PBS.
The character is already included in digital and printed storybooks.
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