|Peabody's Diet / Ponce De Leon|
|Season 2, Episode 8|
|Inside Hobson / Annie Oakley||Secret Agent Sherman / Alexander Cartwright|
Mr. Peabody must go on a diet, but he cannot resist all the delicious food on the show tonight; Ponce De Leon needs help finding the Fountain of Youth, but that will be difficult due to his short attention span. Soon enough, they end up finding different magic fountains with different effects.
- Mr. Peabody and Sherman also visited Ponce De Leon in an episode of Peabody's Improbable History.