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?

<P0-S0> Bartholomew JoJo "Bart" Simpson is a fictional character in the American animated television series "The Simpsons" and part of the Simpson family. <P0-S1>  He is voiced by Nancy Cartwright and first appeared on television in "The Tracey Ullman Show" short "Good Night" on April 19, 1987. <P0-S2>  Cartoonist Matt Groening created and designed Bart while waiting in the lobby of James L. Brooks' office. <P0-S3>  Groening had been called to pitch a series of shorts based on his comic strip, "Life in Hell", but instead decided to create a new set of characters. <P0-S4>  While the rest of the characters were named after Groening's family members, Bart's name is an anagram of the word "brat". <P0-S5>  After appearing on "The Tracey Ullman Show" for three years, the Simpson family received its own series on Fox, which debuted December 17, 1989. <SEP> <P1-S0> The Tracey Ullman Show is an American television variety show starring Tracey Ullman. <P1-S1>  The show is produced by Gracie Films and 20th Century Fox Television. <P1-S2>  It debuted on April 5, 1987, as the Fox network's second prime-time series after "Married... with Children", and ran until May 26, 1990. <P1-S3>  The show blended sketch comedy shorts with many musical numbers, featuring choreography by Paula Abdul. <SEP> <P2-S0> "Good Night" (also known as "Good Night Simpsons") is the first of forty-eight Simpsons shorts that appeared on the variety show "The Tracey Ullman Show". <P2-S1>  It originally aired on the Fox network in the United States on April 19, 1987, during the third episode of "The Tracey Ullman Show" and marks the first appearance of the Simpson family — Homer, Marge, Bart, Lisa, and Maggie — on television. <P2-S2>  After three seasons on Tracey Ullman, the shorts would be adapted into the animated show "The Simpsons". <P2-S3>  "Good Night" has since been aired on the show in the episode "The Simpsons 138th Episode Spectacular" (in its entirety), along with several other Ullman shorts, and is one of the few shorts to ever be released on DVD, being included in the Season 1 DVD set. <SEP> <P3-S0> The Itchy & Scratchy Show (often shortened as Itchy & Scratchy) is a running gag and fictional animated television series featured in the American animated television series "The Simpsons". <P3-S1>  It usually appears as a part of "The Krusty the Clown Show", watched regularly by Bart Simpson and Lisa Simpson. <P3-S2>  Itself an animated cartoon, "The Itchy & Scratchy Show" depicts a sadistic anthropomorphic blue mouse, Itchy (voiced by Dan Castellaneta), who repeatedly maims and kills an anthropomorphic, hapless threadbare black cat, Scratchy (voiced by Harry Shearer). <P3-S3>  The cartoon first appeared in "The Tracey Ullman Show" short "The Bart Simpson Show", which originally aired November 20, 1988. <P3-S4>  The cartoon's first appearance in "The Simpsons" was in the 1990 episode "There's No Disgrace Like Home". <P3-S5>  Typically presented as 15-to-60-second-long cartoons, the show is filled with gratuitous violence. <P3-S6>  "The Simpsons" also occasionally features characters who are involved with the production of "The Itchy & Scratchy Show", including Roger Meyers Jr. (voiced by Alex Rocco, and, later, Hank Azaria), who runs the studio and produces the show.