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Television
- The Muppet Show Season 5 begins in syndication
- Barrio Sésamo ends its first run in Spain
- Emmet Otter's Jug-Band Christmas first airs on network television (ABC), December 15
- Here Come the Puppets PBS special
Appearances
- Kermit and Miss Piggy host an episode of Great Performances featuring the San Francisco Ballet performing Cinderella on PBS
Storybooks
- The Amazing Mumford Presents All About Bones
- Anybody Can Play
- Big Bird Follows the Signs
- The Case of the Missing Duckie
- The Count Counts a Party
- The Count's Counting Book
- Don't Forget the Oatmeal!
- Down on the Farm with Grover
- Farley Goes to the Doctor
- Fix It, Please
- Going Up: The Elevator Counting Book
- Grover's Book of Cute Little Baby Animals
- The House That Biff Built
- I Can Do It Myself
- If I Lived Alone
- Look What I Found!
- Molly Moves to Sesame Street
- Monsters Come in Many Colors!
- Muppets at Sea
- Robin Hood
- The Sesame Street Dictionary
- The Sesame Street Pet Show
- The Sesame Street Storybook Alphabet
- Show and Tell
- Special Delivery
- Spring Cleaning
- The Tool Box Book
- Twiddlebugs at Work
- Vegetable Soup
- What Did You Bring?
Non-fiction Books
Albums
- Big Bird's Birdtime Stories
- Christmas Eve on Sesame Street
- In Harmony: A Sesame Street Record
- Love
- The People in Your Neighborhood
Merchandise
- The Muppet Stuff store opens on Lexington Avenue in New York City
- The Miss Piggy Calendar 1980
- Picco clocks
- The Sesame Street Calendar: The 1980 World Games
- Sigma Christmas ornaments
Stage Shows
Muppet Character Debuts
- The Muppet Show: Pops, Baby Seals, Armstrong the Chicken Hawk, Raccoons, Skunk, Lips, Pink Boppity, Green Boppity, Purple Frackle, Elderly Frackle, a modified Snake Frackle, Dark Green Hunchback Frackle
- Sesamstraat: Ieniemienie
People
Locations
- Sesame Place amusement park opens in Langhorne, Pennsylvania
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