History HarsherInHindsight / WesternAnimation

** ''WesternAnimation/PhineasAndFerbStarWars'' makes plenty of jokes about the Death Star's thermal exhaust port, comparing it to a [[SelfDestructMechanism Self-Destruct Button]] multiple times. Less than three years later, ''Film/RogueOne'' would be released, revealing that [[spoiler:the thermal exhaust port weakness was intentional, and that many people died to obtain the death star plans.]]

* ''WesternAnimation/{{Rugrats}}'': ''Many'' things related to Chuckie and his father following the episode "Mother's Day":
** "Chuckie vs. the Potty" has Chuckie describe getting potty-trained as "the worstest thing that's happened to me since my mom put me on the bottle." Perhaps she put him on the bottle because she knew she was dying.
** Remember when Chas was crying at Ben and Elaine's wedding in "Let Them Eat Cake"? There's a chance it's bringing up painful memories of [[TheLostLenore losing his wife]].
** In "My Friend Barney," Chuckie having an imaginary friend is not too far off from how real-life children, and even adults, who are coping with loss often have imaginary friends so they can talk to someone as if they were physically present.
** There's also "Dummi Bear Dinner Disaster," which makes a passing remark about Chas going to see a psychiatrist. If you think about it, it is implied that with the death of Melinda, the only thing preventing him from losing his sanity completely is their son Chuckie.
** In "Chuckie's Wonderful Life," Chuckie sees that, [[LivingEmotionalCrutch without him]], Chas' sanity [[SanitySlippage is completely broken]]: he's unemployed and lives in poverty, with empty pizza boxes for furniture and a sock puppet as his only friend. Considering that he's lost his wife and Chuckie is their only son, this is justified... [[TearJerker and heartbreaking]].

* The entire premise of ''WesternAnimation/CountDuckula'' became really unfunny for Latin American viewers due to the violent deaths of Creator/LuisAlfonsoMendoza (who voiced the titular character in said region) and Creator/MiguelAngelGhigliazza (who provided the voice of the narrator).

** Hugh being [[StalkerWithACrush stalked and harassed]] by the lovestruck sisters in "Study Muffin";

** "Along Came a Spider..." has a gag in which Franchise/SpiderMan tries to speak in a baritone, but fails so badly at sounding tough, ComicBook/{{SHIELD}} agent Clay Quartermain asks, "What's wrong with your voice?" Before this episode aired, ExecutiveMeddling had the writers' first choice for Spider-Man's actor, Creator/JoshKeaton, dubbed over by Creator/DrakeBell, as synergy with ''WesternAnimation/UltimateSpiderMan2012''.[[note]]Never mind how many other characters sound and/or look completely different between the two shows...[[/note]] After the airing, cue peeved Josh Keaton fans decrying Drake Bell's performance as inferior, and questioning the need to change an already-animated Spidey's voice. Eventually, even the head writer of ''EMH'' called it "[[CreatorBacklash pretty unnecessary]]" of Marvel to replace Keaton with Bell.

** In Season 2 Episode 11 Brain uses the phrase "a war of wills" to which Pinky responds imagining a fight between "Will Ferrell... and ''Creator/WillSmith.''" The Academy Awards ceremony the following year would see Will Smith get in a fight with another celebrity (although more of a war of ''a Chris and a Will'' in that case).

* ''HarsherInHindsight/VoltronLegendaryDefender''

** A meta example comes up with "Last Christmas". Russi Taylor, who voices young Donald in the episode, would die over 7 months after the episode aired. In essence, this was the last time she'd be involved in a [=DuckTales=] project.
** Another meta example with "The Duck Knight Returns!", which focuses on the fall of Jim Starling and [[BrokenPedestal everyone losing respect for him]]. At the same time the episode aired, Creator/JimCummings, Starling's voice actor, was the subject of allegations of domestic and animal abuse by his ex-wife which damaged his reputation.