A proper white man adopts two street-wise black boys. HilarityEnsues.

''Diff'rent Strokes'' (1978-86) made a star of Gary Coleman as Arnold Jackson, the younger of the two boys. Todd Bridges was his older brother Willis and Conrad Bain was the proper white man, Mr. Drummond. As one of [=NBC=]'s few late-'70s hits, it quickly launched a spinoff in ''Series/TheFactsOfLife'' the following year. [[Main/RonaldReagan First Lady Nancy Reagan]] made a guest appearance in a VerySpecialEpisode about drug abuse, and [=ABC=]'s ''Webster'' was a FollowTheLeader rival. Ironically, ''Diff'rent Strokes'' itself actually moved to ABC when it got canceled by NBC. The theme was co-written and performed by Alan Thicke.

Unfortunately, this show is best remembered now both for its [[Main/VerySpecialEpisode special episodes]] and the [[http://en.wikipedia.org/wiki/Diff%27rent_Strokes#Post-show_troubles unhappy fates]] of its three leading kid actors (Coleman, Bridges, and Dana Plato, who played Mr. Drummond's daughter); it's such stories that the FormerChildStar trope is built upon. Coleman's is parodied in the musical ''Theatre/AvenueQ''.

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!!Tropes:
* AnAesop
* AllGaysArePedophiles: Referenced and debunked in "The Bicycle Man" episode. In the VerySpecialEpisode's final scene -- one where the police detective basically answers common questions, as posed by the Drummonds -- Willis remarks that Mr. Horton (the seemingly genial bicycle shop owner with the sinister secret -- ''must'' be a homosexual, which the detective refutes quickly.
* AttemptedRape: In a later season episode, Arnold and Kimberly accept a ride in a car from a stranger. He takes them back to his apartment and locks Arnold in another room while he takes Kimberly to his darkroom; their father and the police arrive JustInTime.
** And then there was the child molester who ran the bike shop, and convinced Arnold and his friend to come back into his house for ice cream and shirtless wrestling.
* BigEater: Arnold, apparently.
* BigFancyHouse: The posh penthouse where the Drummonds live.
* BlackmailIsSuchAnUglyWord
* BreakoutCharacter: Arnold Jackson.
* TheCastShowOff: Dana Plato was a trained figure skater, which the producers allowed her to demonstrate in "Family On Ice" (with SpecialGuest Dorothy Hamill).
* CatchPhrase: "Whatchoo talkin' 'bout, Willis?"
** Willis' habitual "Saaaaaaaaaay what?" would qualify as well.
* ChannelHop: To [=ABC=] for the final season.
* ChildHater: In ''The New Landlord'', the new landlord decides to ban children from the building, meaning the Drummonds would be evicted.
-->'''Arnold:''' "Weren't you a kid once?"
-->'''New Landlord:''' "Nope. I went directly from birth to Landlord.
** In "The Woman", a woman who Mr. Drummond wants to marry plans to send the kids away.
* ChristmasEpisode: Two of them; the first was also a ClipShow.
* {{Cloudcuckoolander}}: Aunt Sophia.
* CorporalPunishment: One episode centered around Mr. Drummond saying he'd have to spank Arnold for some misdeed. Willis argued that ''he'' should spank Arnold, because he's "family". And he does.
* TheCouch
* CousinOliver: Sam.
* CrossOver: Several crossovers have ocurred during the series' run. Including three that involved the McLeanStevenson sitcom ''Hello, Larry'', a handful involving spinoff ''Series/TheFactsOfLife'' and one involving ''Series/KnightRider''. Characters from ''Diff'rent Strokes'' have also crossed over onto ''SilverSpoons''.
* DaddysGirl: Kimberly.
* DeadpanSnarker: Arnold. The other characters have their moments too.
* DemotedToExtra: Willis in the last two seasons was dropped into the background since most of the storylines were focusing on Arnold and his new stepbrother Sam (Maggie's son).
* DomCom
* EditedForSyndication: The broadcast syndication versions of ''Diff'rent Strokes'' (which are also the versions seen on Antenna TV since 2013) feature fairly noticeable (and to some extent, poor) edits for time constraints: the most glaring are the season three episode "The Older Man", in which both a scene dissolve and a wipe take place at almost the same time while transitioning to a scene in which a 25-year-old man whom is dating Kimberly ([[spoiler: due to her being mistaken for a 20-year-old, while dressed in makeup and costume for a school play]]) arrives at the penthouse to take Kimberly out on their date; the episode "The Athlete" from the same season, features a brief clip of a scene in which Willis teaches Kimberly a dance move, which then abruptly switches only ''two'' seconds later to the scene in which Willis gets his acceptance letter to Fillmore High ([[spoiler: as promised to him by that school's shady baseball coach, who uses his sister's address to get most of his recruits accepted into the school]]).
* TheEighties
* FollowTheLeader: ''Webster''
* HappilyAdopted: The Jackson brothers. Also Arnold's friend Dudley.
* HappilyMarried: Drummond and Maggie.
* TheGhost: The Gooch, a bully at Arnold's school.
* GoodParents
* JerkWithAHeartOfGold: Willis can qualify.
* JiveTurkey: Though not too much.
* JustTestingYou: When Susie tells Arnold that she reads The Wall Street Journal, Arnold says he likes the comics in it. When she says there are no comics, Arnold says he is just testing her.
* Magazine/{{Mad}}: "Diff'rent Jokes".
* MalaProper: Arnold.
-->An example comes from the season three episode "Drummond's Fair Lady":
-->'''Arnold''' [intending to say "Magna Cum Laude"]: "Hi, I understand you graduated Magna Cum Lousy."
* MouthyKid: Arnold. And to some extent, Willis.
-->"You're a lily-livered weak sister with no guts!"
* NotAllowedToGrowUp: Arnold aged much slower than the rest of the cast. Coleman's kidney disorder meant that the actor never grew above 4' 8''.
* TheOtherDarrin: Mary Ann Mobley replaced Dixie Carter as Maggie [=McKinney=], the woman who marries Mr. Drummond in the show's seventh season, when Carter left to play Julia Sugarbaker on ''DesigningWomen''.
* ParentExMachina
* PicnicEpisode: Darkly portrayed in Season 6's "The Hitchhikers" (the episode where Kimberly and Arnold accept a ride from a stranger named Bill). While the two are held hostage, Bill – possibly having had problems with trying to pursue relationships with women in the past, as alluded to in the episode's closing scene – tries to get Kimberly to be his girlfriend, and to set the mood brings out a picnic basket and blanket and says that's what they're going to do ... .
* PieInTheFace: "Hooray For Hollywood"
* PoorlyDisguisedPilot: "The Girls' School", which bore ''Series/TheFactsOfLife''.
* PostRobberyTrauma: A 1985 episode saw Arnold robbed at knifepoint, and tries (successfully, for awhile) to supress his deep trauma ... but Mr. Drummond senses otherwise and arranges for a schoolroom exercise to get Arnold's true feelings out in the open.
* PrenupBlowup: Drummond and Maggie.
* PromotionToOpeningTitles: Maggie and Sam in season 7.
* PutOnABus: Mrs. Garrett, then Adelaide. They both came back for the Drummond and Maggie's wedding episode.
** Kimberly, via RealLifeWritesThePlot. The actress, pregnant at the time, was not part of the regular cast in the last two seasons, only making occasional guest appearances.
* RearrangeTheSong: In addition to the producers having to recast the role of Maggie [=McKinney=] after moving to ABC, Alan Thicke also had to record a new version of the show's theme song, because NBC owned the copyrights to the original.
* RecurringCharacter: Many. The most frequent is Dudley.
* ReplacementGoldfish: Literally. Arnold's beloved goldfish Abraham dies, so the family tries to hide it from him until they can get a replacement. When Arnold becomes suspicious, and happens to notice Mr. Drummond's will, he jumps to the wrong conclusion and thinks that Mr. Drummond is dying. Arnold notices that the new goldfish "isn't Abraham!"
* SmokingIsCool: In "The Girls' School" episode, the character Blair (the snobby rich girl, played by Lisa Welchel) can be seen puffing on a cigarette; this character trait would be dropped (Welchel is a non-smoker) by the time ''Series/TheFactsOfLife'' made it to series.
** Twisted around in a 1984 episode, where Arnold and his buddy, Dudley, experiment with smoking cigarettes. They get a graphic lesson when Dudley's father reveals he is a chronic smoker and needs a lung operation; the fade-to-black scene showed the man lighting up in the hallway, just after leaving the Drummonds' apartment.
* SpinOff: ''Series/TheFactsOfLife'', which spawned ''The Facts of Life''. The spinoff outlasted its parent show by two years, and had a year-longer run (nine seasons, vs. ''Strokes''' eight).
* SpoiledSweet: Kimberly.
* SuspiciouslySimilarSubstitute: Adelaide Brubaker for Edna Garrett, then Pearl Gallagher for Adelaide.
* TooSmartForStrangers: One of the more infamous examples.
* VerySpecialEpisode: Most famously "The Bicycle Man" 2-parter.
* WeddingDay
* WrongNameOutburst: In the season four episode "Double Date", Phillip suggests that Willis accompany Arnold on his first date, since Arnold is too young to date by himself. Before Willis exhausts all options in finding a date, leading to Phillip's suggestion that he [[ItMakesSenseInContext take Kimberly out instead]], Willis tells Arnold the reason why he's looking for a date with another girl is because he called his girlfriend Charlene the wrong name.
-->'''Willis:''' She's not talking to me on account of the name I called her.
-->'''Arnold:''' What's that?
-->'''Willis:''' [[MyNameIsNotDurwood Janet]].
** Coincidentally, Charlene was played during that season by a Janet: JanetJackson.
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