Sesame Street Episode #18.68 (1969– ) Online
Big Bird and Snuffy practice exploring by pretending to visit Sesame Street for the first time. Then, Mumford tries another magic trick- and ends up making Maria quack like a duck. Today's sponsors are the letters W and Z and the number 8.
| Episode credited cast: | |||
 | Daniela Barbosa | - | Daniela |
 | Alison Bartlett | - | Gina |
 | Paul Benedict | - | The Mad Painter |
 | Linda Bove | - | Linda |
| Fran Brill | - | Prairie Dawn (voice) |
 | Kevin Clash | - | Elmo / Octopus (voice) |
 | Emilio Delgado | - | Luis |
| Fred Garver | - | Barkley (voice) |
 | Jim Henson | - | Ernie / Kermit the Frog (voice) |
 | Lena Horne | - | Herself |
 | Richard Hunt | - | Forgetful Jones / Leo the Party Monster / Two-Headed Monster (voice) |
| Loretta Long | - | Susan |
 | Sonia Manzano | - | Maria / Duck (voice) |
| Bob McGrath | - | Bob |
 | Jerry Nelson | - | The Amazing Mumford / Herry Monster / Two-Headed Monster (voice) |