Picture	Segment	Description
	SCENE 1	Telly and Rosita welcome the viewer and are going to introduce the sponsors. Telly covers the number of the day (four) and prompts Rosita to reveal the letter of the day, but she doesn't know it. She goes to find out, leaving Telly alone. As he tries to make small talk with the viewer in the meantime, he hears a strange whistling sound. Ominous music plays and a large, sparkly X with black eyes emerges from Oscar's trash can area and hovers around the street sign (with a trail of smoke accompanying the letter). Rosita returns, having learned today's letter from Maria, but finds Telly in shock, stammering, "X...X...X!" and pointing to where the X once was. Rosita instead interprets his response as already knowing the letter.
	Animation	The letter X in various typefaces. (First: Episode 2862)
	Film	The letter X dances at the beach. (First: Episode 3588)
	Muppets	Muppet & Kid Moment — Grover and Patrick, "moon buddies," pretend to go to the moon. They see some aliens eating moon pizza, and some astronauts. (First: Episode 3701)
	Cartoon	Jerry Nelson sings "Moonshine." (First: Episode 2775)
	SCENE 2	Telly tells Rosita about the strange X, which he suspects could be from "somewhere else." Rosita thinks it must be his imagination and begins describing a time she similarly imagined a dinosaur. In the midst of her talk, the X appears again in the window of 123 Sesame Street. Telly tries to get her attention, but the X is gone by the time she looks.
	Cartoon	Suzie Kabloozie sings about the things she can imagine herself doing "In My Head." (First: Episode 3526)
	Insert	"Professor Television" (Bill Irwin) tries to demonstrate the word DANGER. (First: Episode 3627)
	Song	"Danger, Danger" - a man (Rondell Sheridan) falls into a sewer and experiences a series of dangers which he can hopefully rectify.
	SCENE 3	In the yard, Big Bird (Matt Vogel) accompanies Rosita in looking for the supposed letter X that Telly tells them about. While they're gone, the music begins once more and Telly spots the X behind him. Big Bird and Rosita return, failing to notice the strange X, but they've found another X instead...
	Film	Ornate Xs spin around in accompaniment to a song. (First: Episode 2929)
	SCENE 3 cont'd	Telly tries to point them toward the strange X behind him, but it disappears again when his friends take a look. Rosita suggests Telly lie down, but he runs off vowing to find it ("The truth is out there!").
	Animation	A Keith Haring mural comes to life after some kids EXIT. (First: Episode 3006)
	Cartoon	Campers don't want to play ring toss with Zork, until their counselor reminds them not to be judgmental. (First: Episode 2761)
	Animation	Four butterflies fly across a film of a waterfall. (First: Episode 2834)
	Cartoon	Number Guy: ‘’’How Many Elephants Can You Fit in a Room?’’’ The answer is 4. (First: Episode 3358)
	Film	Four kids dance in a colorblock grid. (First: Episode 3149)
	Song	“You Don't Have to Be a Grizzly” ...to eat some honey! (First: Episode 3398)
	SCENE 4	At Hooper's Store, Alan convinces Devon to try some mashed potatoes (which he's never had before). A panicked Telly enters the store and is given the same meal to calm down. Telly describes the X to Alan as he serves Telly more and more. Soon, Telly has absent-mindedly sculpted an X out of his potatoes!
	Film	Wegman dogs form the letter X and demonstrate an X-ray. (First: Episode 3535)
	Muppets	Mysterious Theater: Sign of the Circle — Sherlock Hemlock tries to find a shape matching a circle before the clock strikes five... and it turns out to be the round clock face. (new music and sound effects added) (First: Episode 2706)
	Film / Animation	Circles of all kinds are displayed as funky rap music plays. (First: Episode 3126)
	SCENE 5	Telly rejoins Big Bird and Rosita, and now all of them hear the strange whistling. They spot the letter X behind them and Telly tries communicating with it. The X only replies with "Xylophone." They all agree they need a grown-up's help and call for Maria.
	Muppets	Ernie's Show and Tell Ernie visits his friend Zachary, who plays the trumpet. He explains how practicing is important to play an instrument well. (First: Episode 3804)
	Film	Kids sing the alphabet on an island. (First: Episode 3154)
	Animation	Colored tools build a house out of colored rectangles, squares and triangles. (First: Episode 3263)
	Film	A Japanese boy plays taiko drums in the park. (First: Episode 3153)
	SCENE 6	At the Fix-It Shop, Maria is introduced to the mysterious X. She correctly guesses that the X keeps repeating "xylophone" because it's an X-word, and also because the letter desires one, so she fetches a xylophone from the shop. The X thanks her, communicating now in full sentences. He clarifies that he's not from "somewhere else," but rather "the alphabet." He also reveals his "big black eyes" are in fact sunglasses (since Sesame Street is a sunny place). Now that he has a xylophone, he begins playing an X-Files-esque tune on the instrument, while Telly whistles along.
	Muppets	Elmo's World: Music (First: Episode 3824)
	SCENE 7	The X has bored everyone with his monotonous tune. Telly asks if he knows anything else, and the X obliges with the first five notes of the "Sesame Street Theme" as Maria recites the sponsors.

Notes[]

• John Tartaglia performs the letter X.

• The street story spoofs The X-Files. The music that accompanies Telly's X sightings is a musical reference to the X-Files theme.

• The street story also makes references to Close Encounters of the Third Kind, specifically Telly's mashed potato sculpture of the X, and the letter's rendition of the "Sesame Street Theme" utilizes a five-note pattern in the same manner as the film.

• During the last sighting, the X makes an in-joke using the Sesame Street theme song: when asked why it wears sunglasses, the letter mentions the bright light on the Street and sings the first few bars of the theme.

• At an event at the Museum of the Moving Image in 2015, Alan Muraoka revealed that this episode only aired once due to being too scary.^[1] The episode would later air on Noggin and Sprout, however.

Sources[]