Silliness and surprise twists abound in the half-hour special, in which Elmo teams up with Abby Cadabby via video chat for a virtual scavenger hunt. Aided by Sesame Street friends Big Bird, Grover, Rosita, Oscar the Grouch, Bert and Ernie, Elmo's dad Louie, and tiger Mr. Stripey, the duo invites children to join in the search for all seven items on their list...along the way, "Monster Foodies" Cookie Monster and Gonger whip up a tasty summer dessert, Amy Sedaris shares an easy craft the whole family can make, and Gabrielle Union leads Elmo and Abby in a sweet sing-along.

A look back at 40 years of Seasame Street.

C is for Celebrate! Join host Joseph Gordon-Levitt and the residents of Sesame Street - human and monsters alike - to celebrate 50 years of learning, laughter, and love. Familiar felt faces like Roosevelt Franklin, Don Music, Sherlock Hemlock, and the Amazing Mumford join celebrity guests Norah Jones, Nile Rodgers, Sterling K. Brown, Meghan Trainor, Patti LaBelle, and Elvis Costello in this heartwarming special.

Everyone's favorite furry red monster is back with a brand-new special to teach us the importance of standing up and speaking out when people are treated unfairly.

These words are wild! Join your Sesame Street friends and some very special guests for some outdoor adventures on Sesame Street full of rich vocabulary about the environment around us.

When Max the Magician (guest star Will Arnett) comes to Sesame Street, Elmo and his friends are excited for a fun magic show! Max makes a scarf appear and cards disappear and Elmo, Big Bird and Rosita are amazed, but Chris points out what Max is really doing is subtraction and addition. This story highlights these math areas and is followed by the rest of a full hour episode complete with additional math and number films as well as favorite segments such as Elmo's World, Murray Had A Little Lamb and The Adventures of Bert and Ernie. Enjoy another full hour of a second math centric story "Hat Day" where Elmo and Zoe have a contest to see who can wear the most hats! Elmo and Zoe must count, estimate and even count by fives. This second story is also followed by the rest of a full hour episode including the spoof "30 Rocks" which has a counting theme. Elmo's World Hats and the classic Pinball Number Count series are bonus extras!

Come Play with Elmo! Everyone's favorite furry red friend is joined by all kinds of kids to play Elmo Says, Red Light Green Light, Freeze Dance, Pat-a-cake and more. OK Go mix primary colors into a rainbow and Taye Diggs helps Elmo pretend in this playful special featuring singing, dancing, and learning!

The Knights of Sesame Street are on a quest! Sir Elmo, Sir Abby, and Sir Telly discover a Yogurt-Eating Yodeling Yak when they go on a quest to find things that start with the letter Y. The magical adventures continue when the Shoe Fairy (Neil Patrick Harris) appears and shows Abby and Telly that there are shoes for everyone and everything. But can he find the perfect pair of shoes for Telly? Plus, join Cookie Monster as he discovers the perils of having the "cookie touch!"