Take a stroll down Sesame Street and witness the birth of the most influential children's show in television history. From the iconic furry characters to the classic songs you know by heart, learn how a gang of visionary creators changed the world.

Look who's come to visit The Count's spooky castle. It's Elmo! Is he scared? Only for a second because soon he's having a howling good time as his Sesame Street friends stir up some spirited fun. Get ready for nonstop jokes, songs and spooky surprises with Telly, Baby Bear, Bert and Ernie. Elmo Says Boo! is sure to make you shriek — with laughter.

A television special broadcast on PBS in honor of composer, songwriter, pianist, television writer and lyricist Joe Raposo after he passed away.