You know, when I found a list of YouTube clips featuring Sesame Street doing Shakespeare, I was very excited. With 3 little kids running around my house I'm one of those adults who'll giggle hysterically every time Cookie Monster eats poor Prairie Dawn's letter of the day. There's a surprising number of references for adults to be found in the show (I once saw Grover make a Cherry Orchard reference).
Alas, the skits just aren't that good. Having a bunch of puppets running around adding "eth" and "ooth" to the ends of all their words does not make for a Shakespeare skit, in my booketh.
Although the Waiting For Godot one is pretty good, if only for Cookie Monster's description.