May 20

==1956==
*Ed Christie is born.
==1971==
*Sesame Street Episode 0269
==1976==
*Sesame Street Episode 0919
==1977==
*Sesame Street Episode 1050
==1980==
*Sesame Street Episode 1442
==1981==
* The Muppets Go to the Movies airs.
*Sesame Street Episode 1573
==1982==
*Sesame Street Episode 1704
==1983==
*Sesame Street Episode 1835, Season 14 finale.
==1985==
*Fraggle Rock Episode 321: A Dark and Stormy Night
==1988==
*The Muppet Traffic Safety Show launches at the Eastland Mall in Harper Woods, Michigan.
==1994==
*Sesame Street Episode 3265, Season 25 finale.
==2002==
*Kermit, Miss Piggy, Statler and Waldorf appear in a series of Denny's commercials.
==2003==
*Postage stamps of Sien Diels and Tommie are released in the Nederlands.
==2004==
*Sesame Street launches "Healthy Habits for Life"
==2005==
* The Muppets' Wizard of Oz premieres on ABC.
* Oscar the Grouch and David Canary appear at the Daytime Emmy Awards to present the award for Outstanding Performer in a Children's Television Series.
==2008==
*The Muppet Show: Season Three is released on DVD.
*The Sesame Street Podcast: Are you a Happy Healthy Monster?, Brushing Teeth
==2011==
*Die Fraggles: The Complete Series DVD Box set is released.
*Elmo and Beth Kobliner appear on Good Morning America to promote Sesame Street's latest resource video For Me, For You, For Later and explains how saving money helps kids and their parents learn how to manage the saving of the value of money.
*Sesame Street season 42 wraps production.
==2012==
*Elmo makes a live appearance at Jamie Lynn's Kitchen for a "Brunch with Elmo" kids activity.
==2015==
*The Furchester Hotel Episode 139: The Blooming
==2017==
*Sesame Street Episode 4720, HBO
*The travelling version of Museum of the Moving Image's The Jim Henson Exhibition: Imagination Unlimited opens, beginning in Seattle.
==2020==
*The StoryTeller: Ghosts Issue 2
*Elmo appears on GMA Digital
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 0520