All Sales Are Vinyl is a record store that Peter and the guys shop at in "Rock Hard". As they begin to talk about how badly rock films approach their subjects, this leads to a rehashing of the meeting of The Doors.
As the guys can continue their conversation, Jerome takes issue with Peter's assertions that white people invented rock and tells the story of Muddy Drawers, the real father of rock.
Afterwards, the guys spy on Stewie in the record store looking at records, and, when Joe complains about him getting his own story, Peter points out that he doesn't have funny kids as Stewie settles on an Elton John record, leading to a story about the latter.
As the guys are wrapping up their purchases, Peter wants to pay homage to four lads who made it all possible in 1962, which Quagmire takes to mean The Beatles, but Peter is actually referring to The Trashmen, which leads to a clip of the guys performing "Surfin' Bird".