OI010: Stage Fight!

Episode Plot
Ash, Misty, and Tracey buy tickets to the Pokémon Showboat, a wonderful carnival where Pokémon can speak and perform plays! A young actress from the performance has been having problems with her Raichu ever since it shocked her early in their relationship. Ash and Pikachu may be able to help. Of course, they'll have to deal with Team Rocket first, as they attempt to steal all the talking Pokémon.

Trivia

 * The talking pokemon are a result of Pokemon Ventriliquism, the art of throwing your voice to a pokemon to make it look like it's talking.
 * This episode aired two years after IL001: Pokemon I Choose You.