4.In Dexter's Laboratory, Dexter's older sibling's name is Dee Dee. "Didi" is Hindi for "elder sister."
5.The first episode of Tiny Toon Adventures shows a cartoonist struggling to create a new animated series. He draws Babs and Buster, but throws them in the trash. They do the work to create a show for him. Later in the episode, Babs and Buster ask for a "created by" credit. The cartoonist initially rejects them, but they're actually attributed in the end credits.
6.In an episode of Rugrats, Tommy is kidnapped by a pair of criminals who mistakenly think he's the child of a millionaire named "Ronald Thump" — a play on Donald Trump.
7.In another episode of Rugrats, you can also see a door that has "mohel" written in Hebrew on it. A mohel is defined as "a person who performs circumcision." A sign below advertises a "cut rate."
8.During a spring cleaning scene in Rocko's Modern Life, the body of Mickey Mouse can be seen caught in a mouse trap.
9.In an episode of Batman: The Animated Series, Two-Face can be seen pouring half and half into his coffee.
10.In another episode of Batman: The Animated Series, Batman and Robin's combined shadows form the bat symbol.
11.During an episode of The Powerpuff Girls, Blossom falls into a pile of clothes and comes out dressed like Cartman from South Park.
12.During a Season 8 episode of The Simpsons, Homer hallucinates and Ms. Krabappel sounds like the teacher from Charlie Brown. Ten episodes later, a Charlie Brown candle can be spotted in Ms. Krabappel's home.
13.In the background of an episode of Dexter's Laboratory, you can see the Powerpuff Girls with a different color scheme.
14.In Ed, Edd n Eddy, you can spot the steel guitar in the background that Edd plays in other episodes.
15.And finally, on SpongeBob SquarePants, the Krusty Krab is shaped like a lobster trap.