M is the 13th letter of the English alphabet. It has been depicted as a Muppet character, on occasion.

It first sponsored Sesame Street in Episode 0013.

Songs about M

"M-M-M Monster Meal" (Cookie Monster and Herry)
(First: Episode 0380)

"The Sublime Ms. M"
(First: Episode 2837)

"You Got an M Song"
(First: Episode 4107)

"Mouth Music"
(First: Episode 4220)

"M is for Measure"
(First: Episode 5103)

The Letter of the Day: M
(First: Episode 4519)

Segments about M

"M is for Marvelous Martha"
(First: Episode 0013)

Speech Balloon: M - Mailbox
(First: Episode 0013)

"M for mouse, mud, and mother"
(First: Episode 0073)

Today's Secret Drawing
(First: Episode 0131)

M and W
(First: Episode 0155)

M Sound
(First: Episode 0255)

"M is for Moo"
(First: Episode 0276)

M sound
(First: Episode 0276)

"Melvin the moving man"
(First: Episode 0207)

"The M who came to dinner"
(First: Episode 0276)

Kermit draws an M.
(First: Episode 0451)

Ike and the Ilk
(First: Episode 0464)

Letters in space
(First: Episode 0516)

A mouse and the letter M
(First: Episode 0438)

Word Showcases
(First: Episode 0620)

La Letra "M"
(First: Episode 0464)

The Typewriter: M - Magic
(First: Episode 0841)

Sand Alphabet: M
(First: Episode 1091)

M - Moon
(First: Episode 1163)

My Music
(First: Episode 1207)

Me and My M
(First: Episode 1545)

The Mighty M
(First: Episode 1578)

Biff and Sully build an M
(First: Episode 2318)

Gordon voiceover - M/m
(First: Episode 2232)

"M for Mask"
(First: Episode 2079)

Madeline Kahn
(First: Episode 2370)

Alphaquest
(First: Episode 2724)

Typefaces
(First: Episode 2864)

Pencilbox "M"
(First: Episode 3077)

Planting Letters
(First: Episode 3079)

Playing Cards
(First: Episode 3160)

Girls sing and clap
(First: Episode 3297)

Wegman's Dogs
(First: Episode 3276)

Letters on the Street
(First: Episode 3385)

Climbing an M
(First: Episode 3413)

Wegman's Dogs: M for Milk
(First: Episode 3545)

The Letter M
(First: Episode 3422)

M on the Beach
(First: Episode 3636)

Letter Astronauts
(First: Episode 3696)

Safari
(First: Episode 3512)

Monsters in Day Care - The Letter M
(First: Episode 3791)

Flipboards
(First: Episode 3807)

Maya Angelou claps and rhymes with Elmo
(First: Episode 3832)

The Letter of the Day: M - disguise
(First: Episode 3984)

The Letter of the Day: M - mmmm
(First: Episode 4069)

Law and Order: Special Letters Unit: "The Search for the Missing M"
(First: Episode 4109)

The Letter of the Day: M - stuck
(First: Episode 4176)

The Letter of the Day: M - bring out your M
(First: Episode 4210)

M for Music
(First: Episode 4210)

"Letter M Day"
(First: Episode 4273)

Alphabet Cook-Off
(First: Episode 4312)

Kids with Words
(First: Episode 4415)

M is for Maze
(First: Episode 4519)

M is for Magician
(First: Episode 4906)

Street stories about M

Capital and Lowercase M
Episode 3458

The letter M goes missing on Sesame Street
Episode 4807