First, children and parents can sing their way through the ABCs with Big Bird, who joins special guest Billy Joel to "Do the Alphabet" with Baby Bear, in this special "Sesame Street" program that's never been seen on TV. Next, youngsters can imagine themselves anywhere or as anything─with a little help from the residents of Sesame Street─in "Imagine That!," a fun-filled video of games and activities to stimulate creativity. 75 min. total. Standard; Soundtrack: English.