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In page Dog Gone:

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In an attempt to try to prove that an animal has the same rights as humans, Brian starts an advocacy group, and is suggested by Lois to join PETA, but she is unable to enunciate the word differently from how she pronounces "Peter," leading her husband to become confused. The end of the gag has Chris stating his belief that Betty White is a member of the organization, with his wording prompting Peter to yell, "That doesn't even make sense!" [1][4] Brian goes on to create a public service announcement regarding animal rights, one of which involves a dog being "tortured" by having to listen to the radio show All Things Considered on National Public Radio, which the dog's owner leaves on for him before leaving the house.[4]