Arthur's Lost Dog

Arthur's Lost Dog is the second half of the 12th episode of Season 1. It first aired on November 25th, 1996 with "Arthur Writes a Story."

Summary
It is Downtown Day in Elwood City and the Reads are downtown attending the event. They pass Pickles The Clown carrying balloons. Kate begins to cry and no one knows why, except for Pal, who knows she wants a balloon. Pal runs off after Pickles to get a balloon, but Arthur thinks he's running away from him.

Trivia

 * This is the first appearance of "Pickles the clown"