Examples: Itchy & Scratchy from The Simpsons, The Scary Door from Futurama, or The Grand Inquisitor from Dostoevsky.
“Scary door” from Futurama
It’s a play on the twilight zone and it’s quite something.
“A casino where I’m always winning? This must be heaven!” “A casino where I always win… I must actually be… IN HELL!”
“No Mr. smith. You’re not in heaven or hell. You’re on an airplane!”
“Help! There’s a gremlin destroying the plane! You’ve gotta believe me!”
“Why should I believe you?! You’re Hitler!”
For those interested: The Scary Door
It’s Twilight Zone, but only the twists
Saw it coming
Mr Potato from Peppa Pig
Removed by mod
“Well, that about wraps it up for God” by Oolon Colluphid
Sweet Bro and Hella Jeff from Homestuck. Although it actually predates Homestuck and was retroactively converted into media-within-media, does that still count?
Sick Sad World from Daria. I’d love that show
“Ya Heard? With Perd!” in parks and recreation.
More like Turd Crapley!
All the ads in Robocop and Starship Troopers really
the Wall in Solar Opposites.
Way more interesting than the actual Solar Opposites. 😂
“The Hitchhiker’s Guide to the Galaxy”
by Douglas Adams is a book about a book called “The Hitchhiker’s Guide to the Galaxy”
Station eleven
I didn’t see this one in the list, but UNN newscast from Starcraft 2 is one of my favorites! Particularly Donny Vermillion.
Interdimensional Cable from Rick and Morty is outrageous. GTA’s radio stations (VCPR was the best) and TV shows are often really funny. The Pißwasser beer commercial from IV always gets me.
It’s got a much… umm more improvisational… uhh feel. Oh geeze.
I like that someone figured out half assing things can be just as funny or even funnier than putting in the effort to make it look more professional.
Now I’m curious about who first bottled that lightning.
Maybe the makers of Aqua Teen Hunger Force? Half the characters in there seemed like they were making it up as they went and is the earliest one I can think of where that was a common theme.
Home Movies came later but is the earliest where that’s applied to media produced “in-universe” that I can think of.
Home Improvement was earlier than both and Tim was often out of his league on his show, but that was more of a “ill prepared but at least trying to be professional” act than “making it up as we go and not even trying to hide it”.
Mrs. Albert Hannaday from The Office
The “Busty Asian Beauties” running gag in supernatural. Was a magazine, website etc. Always gave me a chuckle.
Steel samurai from the ace attorney series.