Abbott and Costello was a popular American comedy duo consisting of Bud Abbott and Lou Costello, known for their slapstick humor and comedic routines. In the episode titled 'Mortimer's Pet Shop,' which aired on November 2, 1944, Lou Costello gets a job at a pet shop to earn money for a new dog, Hector. The story unfolds as Costello and Abbott navigate the humorous situations that arise from working in a pet shop, including a chaotic dog show where Lou needs to present his beloved dog.