X is the 24th letter of the English alphabet. Used in various Sesame Street sketches as a prop or concept, the Letter X has also appeared as a Muppet character on multiple occasions, such as being serenaded by Patti LaBelle or as a mystery guest on Mystery Guest.
The letter first sponsored Episode 0006.
Songs about X
Street stories about X
Segments about X
Plaza Sésamo Segments
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