Peabody's Improbable History takes us to 18th century Italy, where Casanova (Paul Frees) opts to go back to prison on the day of his release, which confuses Mr. Peabody (Bill Scott) and Sherman (Walter Tetley).
The whole idea is for Peabody & Sherman to steer historical figures onto the right life path. This angle has been copied both in other cartoons (i.e. Time Squad, Time Warp Trio) and in live action (Voyagers!, Time Tunnel). Luckily for us, the innovators are back in a new online series on Netflix, created in the wake of the recent feature film.
"Casanova", however, was not one of the better ones.