Santa's Little Helper and is the center of the plots of several episodes. During the course of the show, he has fathered litters of puppies, passed obedience school, had surgery for bloat, replaced Duffman as the mascot for Duff Beer, and been trained as a police dog at Springfield's Animal Police Academy. Some of the episodes that focus on Santa's Little Helper have been inspired by popular culture or real experiences that staff members of the show have gone through. Although cartoon animals are often anthropomorphized, Santa's Little Helper generally exhibits canine behavior. Cast member Dan Castellaneta currently provides the dog's sounds on
The Call of the Simpsons DVD review of the first season, David B. Grelck gave the episode a rating of 1.5/5, adding "the surrealism of Homer as bigfoot is a major misstep. This type of gag would be very different today, if done at all." Jon Bonné at MSNBC called the episode "a perfect example of the first season’s bizarre and fruitful balance between edgy humor and softly-drawn neuroses" and stated that "it was this combination that made Groening’s shorts for the Ullman show so compelling, and ultimately what made it possible for "The Simpsons" to break the molds of network television." Colin Jacobson at