The song playing as Timmy and Eliza go to Percy's party shop for the first time is "Feels Good" by Tony! Toni! Toné!
Percy's shop is called Party! Parti! Parté!.
In this alternate universe this last Blockbuster is in Michigan but in real life the last one is in Bend, Oregon.
Takes place in "present day" on September 19th 2022.