Episode 1330




 * Big Bird discovers the law of gravity.


 * Film: A girl catches a lobster.


 * Film: A warthog runs around.


 * Baby Rocky sings "Cry."


 * Richard Pryor in "3's a Crowd."


 * Big Bird puts a collar and leash on Barkley, then takes him for a walk in the park.


 * A Muppet girl sounds out the word "hug" and receives one from Herry Monster.


 * Film: A dirty car gets cleaned at the car wash.


 * Linda signs the word disappear - which David does.


 * Cartoon: Two men push two large bird eggs on top of two hills.


 * Olivia sings "Sing" while Linda signs.


 * Big Bird gives Barkley a big dinner after their trip to the park.