Question: Bartholomew JoJo "Bart" Simpson is a fictional character in the American animated television series "The Simpsons", he is voiced by Nancy Cartwright and first appeared on television in "The Tracey Ullman Show", is an American television variety show starring Tracey Ullman, it debuted on which date?
Sentence (from "The Itchy &amp; Scratchy Show"): Typically presented as 15-to-60-second-long cartoons, the show is filled with gratuitous violence.
Relevant evidence: No