How many ways can you count from 1 to 20? The folks at Sesame Street know them all and run through them several times in this delightful, funny, and educational half-hour video. Big Bird and Count Onetwothree are the hosts of this takeoff on "The Tonight Show," in which Big Bird (as our Johnny Carson stand-in) introduces numbers and the Sesame Street folks act them out. Learning About Numbers is a mixture of original material and skits and songs from Sesame Street. A personal favorite: Kermit the frog as a passenger on an elevator operated by the Count, who keeps passing Kermit's floor because he loves counting the numbers so much. --Marshall Fine