X

(First: Episode 1426)

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

• "X Marks the Spot!"
• "Oh, How I Miss My X"
• "X Train"
• "If It Weren't for You, X"
• "Hurray for X"

Segments about X

The Typewriter: X - X-ray

(First: Episode 0299)

(First: Episode 0482)

(First: Episode 3341)

(First: Episode 3588)

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