 " Rosebud " is the fourth episode of The Simpsons ' fifth season . It first aired on the Fox network in the United States on October 21 , 1993 . The episode begins by showing how on the eve of his birthday , Mr. Burns starts to miss his childhood teddy bear Bobo . The bear ends up in the hands of Maggie Simpson and Burns does everything in his power to get Bobo returned to him . 
