Santa's Little Helper reason he stopped performing as Santa's Little Helper was because "The producers thought... 'Hmmm, Dan barks pretty good, and we are already paying him and he seems to like doing the dog thing... why do we need to pay Welker who comes in here, spends less than an hour, eats all the doughnuts, refuses to come to rehearsals... let's just give the damn dog to Dan!'" Santa's Little Helper has become a well-known dog because of his appearances in the series. A writer for "The Grand Rapids Press" wrote in 2002 that "we all know who Homer, Marge, Bart, Lisa
Good Night (The Simpsons) and looking a little worse for wear." DVD Movie Guide says, "I’ve seen a few additional Ullman shorts and think they’re nearly unwatchable, so I can’t say I miss them, at least not for their entertainment value. However, they’d make a nice historical addition, so it’s too bad we only get this single clip. The first one ever aired, “Good Night Simpsons” runs for 115 unfunny seconds." The Digital Fix says the short extra on the DVD "showcases the superb sense of humour that has made The Simpsons what it is today", and that "the picture quality is quite breathtaking