American Dad! (2005)

S3E12 A.T. The Abusive Terrestrial

After Steve turns Roger down, feeling he's moved past their friendship, Roger sets out to find a new human friend. However, this new companion begins to mistreat him, leading to a cycle of apologies and justifications. Concerned for Roger, Steve and Hayley devise a plan to rescue him from this toxic situation and bring him back home. Meanwhile, Stan visits the Mr. Pibb factory and has a chance encounter with the iconic beverage's namesake.