History Recap / TheSimpsonsS21E22TheBobNextDoor

* ContinuityNod: This episode makes several CallBacks to some, if not most of Sideshow Bob's appearances on the show.

* ComicBookTime: Bob is shocked to find that Bart hasn't finished reading ''Literature/HarryPotterAndTheHalfBloodPrince'', exclaiming "It's a four-year-old book!" ("I'm a slow reader!") The exchange makes little sense if you're taking Bart's age at face value, as four years earlier he would have been only six and would have been a little young to be reading the ''Harry Potter'' series at all--slow reader or not, it's only natural that he wouldn't be very far into it now. (On the other hand, Bob's an InsufferableGenius.)

Bart fears his new neighbor might be Sideshow Bob -- and his suspicions send The Simpsons into a bizarre case of mistaken identity.

** Bart gets flashbacks of dealing with Sideshow Bob, one of them is a clip of him tied upside down on the Statue of Liberty; this scene is not from any actual episode.

* ComicBookTime: Bob is shocked to find that Bart still hasn't finished ''Literature/HarryPotterAndTheHalfBloodPrince'', exclaiming "It's a four-year-old book!" ("I'm a slow reader!") The exchange makes little sense if you're taking Bart's age at face value, as four years earlier he would have been only six and would have been a little young to be reading the ''Harry Potter'' series at all--slow reader or not, it's only natural that he wouldn't be very far into it now. (On the other hand, Bob's an InsufferableGenius.)

* ComicBookTime: Bob is shocked when he references a famous spoiler for ''Literature/HarryPotterAndTheHalfBloodPrince'' and Bart complains that he hasn't gotten to that part yet, exclaiming "It's a four-year-old book!" ("I'm a slow reader!") The exchange makes little sense if you're taking Bart's age at face value, as four years earlier he would have been only six and would have been a little young to be reading the ''Harry Potter'' series at all--slow reader or not, it's only natural that he wouldn't be very far into it now. (On the other hand, Bob's an InsufferableGenius.)

* ComicBookTime: Bob is shocked when he references a famous spoiler for ''Literature/HarryPotterAndTheHalfBloodPrince'' and Bart complains that he hasn't gotten to that part yet, exclaiming "It's a four-year-old book!" ("I'm a slow reader!") The exchange makes little sense if you're taking Bart's age at face value, as four years earlier he would have been only six and would have been a little young to be reading the ''Harry Potter'' series at all--it's only natural that he wouldn't be very far into it now. (On the other hand, Bob's an InsufferableGenius.)

-->'''Walt Warren''': I tried to warn you by writing "Bart Simpson will die" on the walls, but you ignored me.

* AlliterativeName: ''Wa''lt ''Wa''rren.

* AlliterativeName: Walt Warren.

* BatmanGambit: Bart tries to get "Walt" to reveal himself as Sideshow Bob by inviting him to sing the third part in a Gilbert and Sullivan number. Though he doesn't take the bait, he's relieved upon finally revealing himself that he's now free to sing "all the Gilbert and Sullivan I damn well please."
* BluffTheImpostor: Bart and Milhouse attempt this on Walt by enacting a Creator/GilbertAndSullivan play, thinking Bob can't resist the temptation of joining in if it's really him, but he easily shrugs it off, claiming he prefers "southern style music".

* ComicBookTime: Bob is shocked when he references a famous spoiler for ''Literature/HarryPotterAndTheHalfBloodPrince'' and Bart complains that he hasn't gotten to that part yet, exclaiming "It's a four-year-old book!" ("I'm a slow reader!") The exchange makes little sense if you're taking Bart's age at face value, as four years earlier he would have been only six and would have been a little young to be reading the ''Harry Potter'' series at all--it's perfectly reasonable that he wouldn't be very far into it now. (On the other hand, Bob's an InsufferableGenius.)

* ComicBookTime: Bob is shocked when he references a famous spoiler for ''Literature/HarryPotterAndTheHalfBloodPrince'' and Bart complains that he hasn't gotten to that part yet, exclaiming "It's a four-year-old book!" ("I'm a slow reader!") The exchange makes little sense if you're taking Bart's age at face value, as four years earlier he would have been only six and would have been a little young to be reading the ''Harry Potter'' series at all--it's perfectly reasonable for him not to be that far into it. (On the other hand, Bob's an InsufferableGenius.)

* SubvertedSuspicionAesop: After spending half the episode trying to prove that Walt was really Bob, Bart eventually decides he was wrong and even takes him up on his offer to go a trip. It's only after he gets in the car does he find he was right and that he really ''is'' Bob.
** Subverted (Bart was never convinced Walt wasn't really Bob and before leaving, called Chief Wiggum, requesting that he track him).