David (Treehouse of Horror XVI)

David was a robot boy created by Boys R Us.

History
He was bought by Homer and Marge to replace Bart when Bart was in a coma. He quickly proved to be preferable to Bart as he was more well behaved and had a number of extra functions such as recycling old clothes into toys. He was eventually destroyed by Bart to remove the competition.

Behind the Laughter

 * He is based off the robot boy of the same name from the movie .