The Ten-Per-Cent Solution/References

==Cultural references==
*The title is most likely a reference to the Sherlock Holmes novel and also the film The Seven-Per-Cent Solution.
*The couch gag is a reference to The Sword in the Stone, where only the rightful owner of the sword can pull the sword out of the stone (couch).
* The billboard is advertising a play with the Duffman as the author Mark Twain .
*Lisa , Bart and Maggie watch a cartoon with Adolf Hitler in it. Maggie then mimics the Nazi salute and Lisa puts down Maggie's hand nervously.
*"Itchy and Scratchy in the Social Pet-work" is a parody of the film The Social Network.
*"Itchy and Scratchy in Black & Blue Swan" is a parody of the film Black Swan. It is shown right after Krusty complains about the movie parodies on his show being out of date due to the lengthy animation process (which has become a common occurrence on The Simpsons).
*The Museum of TV and Television contains displays for several TV shows that have been shown in earlier Simpsons episodes, including:
**Thicker Than Waters (last mentioned in season 22's "Homer the Father")
**Nookie in New York (last mentioned on season 13's "Half-Decent Proposal")
**Up Late with McBain (last mentioned on season five's "Cape Feare")
**McGarnigale (last mentioned on season five's "Bart's Inner Child")
**Search for the Sun (last mentioned on season seven's "King-Size Homer")
**UpscAlien in da House (also shown in Homer the Father)
*Memorabilia for sale at the Museum of TV and Television includes a figurine of the bill from the Schoolhouse Rock parody on how a bill becomes a law . 
*When Homer's gun goes off in the television museum it shoots the JR from Dallas standee.
**A reference to the famous Who Shot JR? from the soap opera Dallas.
*Jeffery Albertson is pushing the Batmobile in the Museum of TV and Television and gets burned when fire comes out of the exhaust pipe.
*The van from the show The A Team , a miniature replica of the STAR Trek Enterprise , skeletons of the Three Stooges , a Superman and Lassie statue and statues of all the Beverly Hillbillies are all shown in the Museum of TV and Television.
*Marge says Fred Flintstone , Archie Bunker and the King of Queens all mimicked the show the Honeymooners.
*A picture is shown on agent Annie Dubinsky's wall of Joe Camel as her client in her office.
*The Clown Plaza Hotel is a parody of the Crowne Plaza Hotel.
**​Clowns inside the Clown Plaza Hotel
***Bozo the Clown
***Ronald McDonald
*HBOWTIME is a mix between the premium network channels, HBO and Showtime.
**Shows scene during preview: The Ricky Gervais Show and the show the Sopranos .
* An actor from the show Entourage is shown serving Krusty drinks.
*Krusty mentions the performer Beyoncé's rate of pay.
*The network filming Krusty in the show Sex over Sixty is TKN , a parody of the network TLC TV network.
==Goofs/Trivia==
*This marked the first time since 1990 that Krusty was seen with a natural face that didn't appear clown makeup-like. It was previously suggesting in the 1992 episode Homer's Triple Bypass that his makeup was permanently stained on his face due to heart problems.
*Mel's bone is drawn weirdly large in the scene where he winds the jack-in-the-box. 
*Why was Krusty's monkey sidekick just a random monkey instead of Mr. Teeny?  
*Princess Kashmir is brown. It might not have been her, just a similar looking character.
*In "Springfield Up", it is established that the Crazy Cat Lady is around Homer and Marge's age, however she appears here as a young woman in the mid-'60s scene where Krusty performs at the Village Id.
*Maggie isn’t with the Simpsons when they go to the TV Museum and Krusty Burger and when they help Krusty get his job back.
*The color of Krusty's chest varies throughout the episode- when he is seen in his bathrobe, his chest is white, like his face, but both times when he's shown sleeping with his producer, his chest is a bright yellow.
*Krusty's red nose comes off twice in the episode, but previous episodes have suggested that his nose is not fake.
Category:Goofs
Category:Trivia
Category:Cultural references