Santa's Little Helper because there were animation problems with the others. Jean told the "Houston Chronicle" in 2001 that after the first episode was broadcast and "the next seven didn't have the dog, people wondered why." He also said in 2003 that the staff enjoyed the first episodes that centered on him, particularly "Simpsons Roasting on an Open Fire", which is the reason that more episodes about him were written. Writer John Swartzwelder has noted that the staff members of the show write the character Homer in the same way that they write Santa's Little Helper: "Both are loyal. Both have the same
Bart's Dog Gets an "F" shorts, the characters spun off into their own half-hour prime-time show on the Fox network named "The Simpsons". Matt Groening, the series' creator, wanted Ullman to make a guest appearance in one of the shorts, but was told that she was too busy with the rest of "The Tracey Ullman Show". When her show was canceled in 1990, Ullman agreed to do a guest appearance on "The Simpsons" after being asked by Groening once again. The animal noises for the episode, including those by Santa's Little Helper, were performed by Frank Welker. It was the first "The Simpsons" episode Welker