Seasons & Episodes
Movin' In
Multi-millionaire Phillip Drummond, who has agreed to the death-bed wish of his housekeeper to raise her two small sons
The Social Worker
Arnold's eavesdropping leads to trouble when a misunderstanding causes Willis and him to think that Mr. Drummond no long
Mother's Last Visit
Mr. Drummond's socialite and rather snobbish mother arrives and finds there's a lot she doesn't like about her son's new
Prep School
When Mr. Drummond tries to get Arnold and Willis into an exclusive prep school, it turns out to be just a little too exc
The Spanking
Arnold ignores warnings and continues to drop water balloons from the balcony. Mr. Drummond's decision to punish Arnold
Goodbye Dolly
When Arnold loses his favorite doll, he makes sure that his misery is shared equally by the various members of his house
The Trial
When Arnold is in trouble for putting his goldfish in Mr. Drummond's hot tub, Willis insists that it is wrong to convict
Retrospective (1)
Mr. Drummond and family gather around their Christmas tree and recall the many humorous incidents that the family has sh
Retrospective (2)
Mr. Drummond and family gather around their Christmas tree and recall the many humorous incidents that the family has sh
The Fight
Willis puts Arnold in training to fight the local bully, but Mr. Drummond insists more civilized solutions be employed.
The Club Meeting
Willis invites his neighborhood club from Harlem to visit, but things get out of hand when he tries to impress them with
The Woman
Mr. Drummond's intention to marry an attractive widow doesn't meet with his children's approval, and Arnold, Willis and
No Time for Arnold
A lonely Arnold comes up with a method of gaining his family's attention. Unfortunately his plan works a little too well
The Relative
LaWanda Page guest stars as a cousin of Willis and Arnold who, after seeing the boys in their comfortable new surroundin
The Tutor
Drummond hires a tutor for Willis and Arnold who does practically everything but teach.
The New Landlord
The kids devise a scheme hoping to make Arnold convince the new landlord to let the family keep the penthouse.
Willis' Privacy
To get rid of his pesky little brother, Willis divides the bedroom in half and spends more time at his friend's house.
Mrs. Garrett's Crisis
When Mrs. Garrett decides her life as a housekeeper is unfulfilling, she ends up being a guest in the Drummond home, and
The Job (a.k.a.) Willis' Job
In order to earn the money to buy disco skates, and to prove a point to Mr. Drummond, Willis gets a job...but is fired o
The Trip (I)
The stars of "Diff'rent Strokes" and "Hello, Larry" get together in a special, hilarious hour in which Phillip Drummond
The Trip (2)
The stars of "Diff'rent Strokes" and "Hello, Larry" get together in a special, hilarious hour in which Phillip Drummond
Getting Involved
When Arnold is witness to a hold up, the robber tries to ensure that the youngster will not identify him.
Willis' Birthday
Willis is hurt when he thinks his family has forgotten his upcoming birthday. After dropping several unsubtle hints he d
The Girls School (a.k.a.) Garrett's Girls
Mrs. Garrett visits Kimberly's school and takes on its pushy principal with surprising results.
Arnold's Girlfriend (1)
Arnold has appendicitis and Drummond has to deal with the bigotry of Fred Tanner, a potential housing project investor w
Arnold's Girlfriend (2)
Arnold's life is endangered when the kids find out they can't share a room in the hospital and run away on the eve of Ar
Feudin' and Fussin' (I)
Arnold's well-intentioned endorsement of Larry Alder's hosting talents to a New York TV big-wig gives Larry the opportun
Feudin' and Fussin' (2)
Arnold's well-intentioned endorsement of Larry Alder's hosting talents to a New York TV big-wig gives Larry the opportun
Mrs. Garrett's Romance
The Drummond household's curiosity over Mrs. Garrett's new beau turns first to surprise and then to alarm. Mrs. Garrett
Birds and Bees
Willis' fishy version of the facts of life leaves Arnold with misconceptions and Mr. Drummond on tender hooks. Arnold re
Arnold's Hero (a.k.a.) The Hero
Arnold's wildest dream is realized when he comes face-to-knee with ""The Champ"" -- special guest star Muhammad Ali. Whe
The Adoption (1)
The Drummond family celebrates the day Arnold and Willis are supposed to be officially adopted until the visit of a ""re
The Adoption (2)
It appears that Mr. Drummond's attempts to adopt Arnold and Willis will be aborted by a conniving junk dealer until the
Father and Son Day
Willis' cut-throat competitiveness with another boy at his gym leads him to a decision that he will very much regret, es
Thanksgiving Crossover (I)
The Alders and the Drummonds are together again in New York, and Arnold, Willis and Kimberly plan a second Thanksgiving
Thanksgiving Crossover (2)
The Alders and the Drummonds are together again in New York, and Arnold, Willis and Kimberly plan a second Thanksgiving
The Rivals
Arnold and Willis' relationship is threatened when a fickle female classmate, the object of Arnold's affection, turns he
Hot Watch
Discovered in the wrong place at the wrong time, Willis and Arnold become prime suspects when their neighbor's apartment
The Dog Story (a.k.a.) A Dog Story
Arnold saves a dog's life, is bitten and then the dog is needed to save Arnold. The Drummond household members frantical
The Election
Drummond puts his convictions on the line to run for city council, and rooting him on are Arnold, Willis, Kimberly, and
Friendly-Mate
Mr. Drummond is in ""double-trouble"" when Willis and Arnold decide to get him a date. Feeling a little lonely, Drummond
Poor Drummond
A crucially important business deal keeps Mr. Drummond on edge and Arnold and Willis wondering whether they pack for a C
Big Business
Willis and Arnold scheme to make extra ""dough"" by selling brownies, only to discover they can't stand the heat of big
Return of the Gooch
The ""Gooch"" is back and this time he's terrorizing Arnold, but Arnold plans to be ready when the bully strikes. In bui
Valentine's Day Retrospective (a.k.a.) Valentine's Vigil
Arnold and Willis are trapped in the basement and while they await rescue they reminisce about their recent past...both
Skin Deep or True Blue (a.k.a.) Guess Who?
Kimberly's new beau, Roger, suggests pairing his sister with Willis for a double-date, until he finds out the color of h
Teacher's Pet
Parent-teacher night leads Mr. Drummond to a romance with Arnold's teacher and poor Arnold to the jealousy of his classm
The Slumber Party
Leaving Willis in charge of the house for Kimberly's slumber party is a mistake Mr. Drummond soon regrets as the ensuing
Arnold Faces Fatality (a.k.a.) The Will (a.k.a.) Drummond's Will
Arnold fears that his loved ones are checking out of his life when he stumbles upon Drummond's will and then uncovers th
The Squealer
Willis seeks comradeship as a member of the Tarantulas, a street gang, but finds only deceit as he gets caught in a web
The Bank Job (1)
Willis accompanies Arnold as he sets out to withdraw some money from his bank account to pay for his first ""real"" date
The Bank Job (2)
Drummond offers himself and his company airplane as hostages to protect Arnold and Willis, but his sons' future hangs in
Small Claims Court
Arnold has his day in court when an unfortunate ""train"" of events puts him at odds with a less than understanding merc
Substitute Mother
Arnold falls head-over-heels for a temporary housekeeper and embarks on a romantic scheme he hopes will make her a perma
The Accident (1)
The festive family celebration of Drummond's 50th birthday suddenly becomes a disaster after a drunk driver puts Drummon
The Accident (2)
When Drummond finally comes to, he is suffering from amnesia and unless he can regain his memory, he may lose not only h
Little Mother
Kimberly's efforts to help a pregnant girl friend, have Willis and Arnold convinced the Kimberly's the one expecting.
Football Father
After Arnold fails to measure up to the demands of the basketball, baseball and volleyball teams, Drummond convinces the
First Love
Drummond orders Willis to spend more time with his studies and less time with his ""first love,"" but Willis and Arnold
Count Your Blessings
Arnold tries a regimen of stretching exercises and a change of diet to speed his growth, but Drummond finds he must go t
The Loan
Arnold learns the true value of a dollar when Drummond turns down his request to lend $4,000 to the apartment building d
Roots
Willis and Arnold turn the Drummond household upside down as they try to prove to their old Harlem neighbors -- and them
Junk Food Junkie (a.k.a.) Junk Food
Arnold's poor dental checkup and a visit by Drummond's health-conscious sister, Sophia, launches Drummond on a campaign
The Bus
Arnold's excitement at being one of a small group of students in an exchange program with an all-white school is turned
The Older Man
Through Blair's makeup artistry, 15-year-old Kimberly discovers she can pass for 20, but when she accepts a date with a
Where There's Hope
Arnold's tenth birthday party means a lot to him, but for some reason it means a whole lot more to the one person he's d
The Magician (a.k.a.) It's Magic
Arnold's ""famous"" magic disappearing act, designed to impress a magazine reporter and special guest star Dallas Cowboy
Drummond's Fair Lady
Drummond runs into some stiff competition to the candidate he's chosen to head a new division of his company -- his boar
The Ancestors
Drummond and his sister Sophia inherit a prime piece of land in Harlem from a long lost ancestor, but their plan to dedi
Almost American
Arnold's dejection at being grounded for a ""D"" on a history test turns to inspiration after an immigrant studying for
Room for One More
Dudley, fearing his foster father's lost job means he's headed back to the orphanage, cons Arnold into getting Drummond
The Athlete
The coach of the city's top high school baseball team is after Willis and is prepared to do anything to make it possible
Growing Up
His friends' stories of their sexual exploits convince Willis it's time he ""became a man""--now he must convince his st
First Day Blues
Willis has the normal jitters on his first day of high school, and in his hurry to make friends, hooks up with a bad gro
The Model
Kimberly hopes a summer job will make her more independent, but when it becomes an undreamt chance at international mode
The Team
A happy household is torn by the repercussions of meeting racial quotas -- Drummond faces a lawsuit when he hires a blac
The Big Heist
Arnold is elated when he's accepted into an "elite" club at school, but his membership could lead to consequences far be
Double Date (a.k.a.) Blind Date
Arnold's big plans for his first real ""date"" are quickly deflated when parental-imposed restrictions threaten to ruin
The Ski Weekend
Kimberly must face the biggest decision of her life -- whether to spend a ski weekend with a popular boy or turn down th
Health Club
Arnold and Willis face a puzzling dilemma -- how to tell Drummond that the award he worked so hard for comes from a heal
Burial Ground
Arnold and Willis go on a hunger strike to save a historic landmark when they learn construction by Drummond's company m
Hello, Daddy
Does Drummond have a third son, there's a young man at the door who claims he does and that he is.
Jilted
When Willis takes his steady girl friend for granted, his selfishness sends her out with another guy -- who won't ignore
Dreams
A cancelled fishing trip leaves Arnold having a series of bad dreams that the entire family loses sleep over, until a ps
Kathy
Arnold and his friend Kathy face big challenges in their lives and each holds the key to overcoming the other's obstacle
Fire
A fire traps Drummond and his family in their penthouse and has him ""working"" overtime trying to protect them without
The Squatter
Drummond learns the hard way that converting apartments into condominiums can mean hurting lots of innocent people when
The Car
When his girl friend plans on taking a drive with someone else, a careless Willis -- refusing to be outdone -- gets an i
Crime Story (1) (a.k.a.) Crime in the Schools
Arnold and his friend Dudley are scared to death by two teenage bullies who pose the intimidating demand ""your lunch mo
Crime Story (2) (a.k.a.) Crime in the Schools
Arnold doesn't know when to leave well enough alone after Willis comes to his rescue, he gets himself involved in an ""u
B.M.O.C.
Willis' obsession with joining an ""exclusive"" high school club rocks the Drummond household and leaves several victims
Green Hair
An adamant Drummond ignores sister Sophia's pleas to get involved in a group effort to combat air pollution, until Kimbe
Have I Got a Girl for You
Aunt Sophia's matchmaking unites an unsuspecting Drummond with her ""working-class"" hairdresser, but a slip of Arnold's
Lifesavers
A quick-thinking, fast-acting Willis saves Arnold from a near-fatal accident and in doing so unleashes an adoring monste
Stress? What Stress?
Stress is diagnosed as the cause of hard-working Drummond's frequent attacks of pain, but suddenly young, healthy and ""
The Music Man
Willis sets what he's sure is a ""cinch"" audition for girl friend Charlene to sing with his musical group, but his ""bi
Short But Sweet
Arnold feels shortchanged, he's growing older but he's not getting any taller and he's convinced that's the reason why h
On Your Toes
A famed choreographer encourages Arnold to learn ballet, but his youthful dancing days could be numbered when Willis' ta
Shoot-Out at the O.K. Arcade
Arnold is determined to defeat brother Willis at his own game and dethrone him as local video game champ, but in doing s
In the Swim
Willis is completely supportive of Kimberly's transfer into his public school, until his sister's ""innocent"" actions b
Cyrano De Jackson
Arnold's on the outs with his best friend Dudley after he innocently offers to help his bashful buddy win the heart of a
Big Brother
Arnold's got a ""can't lose"" plan for curing a new classmate's loneliness -- sharing big brother Willis -- but his kind
The Peacemaker
Willis' personal safety is in jeopardy when his noble attempt to mediate a feud between rival gangs backfires, forcing h
Substitute Teacher
Arnold and his buddies fabricate a ""little white lie"" in an attempt to get rid of an overly-conscientious substitute t
The Older Woman
A false I.D. and a false bravado create real problems for Willis and a beautiful ""older"" woman when an evening on the
A Case of Overexposure (a.k.a.) Overexposure
Arnold must face the bare facts -- his chances of winning a prestigious school election seem desperately slim, thanks to
Memories
A long lost trunk returned to the boys contains a tape recording of their deceased mother which brings to the surface a
Push Comes to Shove
Arnold's unexpected confrontation with the new building manager's son leads to a chilling series of events that could ge
The Executives
Willis learns that even a little power in the wrong hands can be dangerous when he oversteps the bounds of his authority
Santa's Helper
Arnold falls innocent victim to a beguiling street-corner Santa who has an ulterior financial motive for hiring him as a
A Growing Problem
At 16, Willis thinks he's man enough and old enough to ""top"" a few drinks with the guys, but Drummond's objections sen
Parents Have Rights, Too
Drummond's plans for a quiet and private weekend ""alone"" don't quite work out as he had intended, when a storm sends A
Independent Woman
A new job and a handsome new boss add up to trouble for an innocent Kimberly when her new employer starts displaying a m
The Bicycle Man (1)
Unaware that he's being lured into the carefully crafted trap of a child molester, Arnold eagerly agrees to perform a si
The Bicycle Man (2)
Arnold and Dudley's ""friendship"" with a local merchant reaches a dangerous turning point when, unbeknownst to the boys
Family on Ice
Kimberly is overjoyed when Olympic Gold Medalist Dorothy Hamill sees great promise in her as a competitive figure skater
Hall Monitor
Arnold's good intentions backfire when his efforts to help his handicapped friend Kathy adjust to life in public school
The Cricket
To try to curb Arnold's run of bad luck, Drummond gives him a pet cricket, but the Japanese ""good luck charm"" brings n
Roommates
The household's turned upside down when Drummond becomes Arnold's roommate for a week.
The Reporter
Determined to prove he didn't fabricate a story about drug abuse in his grade school just to win a journalism contest, A
Romeo and Juliet
Arnold's Romeo is steeped in more turmoil than Shakespeare ever intended when he's tricked by his ""best friends"" into
My Fair Larry (a.k.a.) My Fair Lady
School ""thug"" Larry coerces Willis into teaching him how to ""make it"" with girls, but things go from bad to worse wh
Mr. T and mr. t
Arnold's ecstasy over meeting his hero Mr. T goes from elation to emulation when the young girl he's trying to impress s
The Goat
Arnold's first day at junior high is emotionally devastating when he's shunned for not measuring up to the expectations
Rashomon II
Drummond, Willis and Arnold bravely subdue a burglar who had been holding the family at gunpoint, but the arresting offi
The Lie
Willis' seemingly harmless disregard for the truth turns dangerous when a self-serving lie about knowing CPR jeopardizes
Drafted
When 13-year-old Arnold is notified to register for the draft, Drummond's over reaction to the obvious error turns Arnol
The Van Drummonds
A short visit to the United States by Phillip Drummond's Dutch cousin Anna and her son Hans becomes an eternity for Arno
The Moonlighter
Arnold is disappointed to discover that his favorite teacher moonlights as a cocktail waitress, but he's stunned when he
Coming of Age
Kimberly's 18th birthday present from daddy -- a trust fund -- will make her a wealthy woman, but her free-spirited drea
Assert Yourself
Arnold turns a pal into an opponent when he resigns as Dudley's campaign manager and declares his own candiacy for class
Mrs. Z
Drummond's provided with police protection of a most unusual kind after his charitable philanthrophy leads to a $1,000,0
The Senior Class Queen
When Kimberly starts a campaign to open the school's Lettermen's Club to female membership, an embarrassed Willis retali
Where There's Smoke
Arnold and Dudley succumb to peer pressure and ignore warnings against cigarette smoking, only to have the harsh realiti
Drummond's Lady
Arnold unwittingly solves his father's dilemma -- trying to make romance and finance go hand-in-hand -- when Drummond fi
The Hitchhikers (1) (a.k.a.) Hitchhiking (1)
Kimberly and Arnold break a long-standing family rule and face death when, on their return from a shopping trip, they fi
The Hitchhikers (2) (a.k.a.) Hitchhiking (2)
Hitchhiking leads to kidnapping for Arnold and Kimberly, but Arnold escapes and he is so disoriented he is unable to rem
Hooray for Hollywood (1)
Upset over Maggie breaking off their relationship, Drummond chases her to Hollywood to win back her heart, but while he
Hooray for Hollywood (2)
Arnold's joy over being saved from an explosion by ""Knight Rider's"" David Hasselhoff quickly turns to dismay when he l
The Wedding (1)
Maggie's reaction to a proposed pre-nuptial agreement threatens to hamper Phillip's happiness -- but could eliminate Arn
The Wedding (2)
Their family and friends assembled, Phillip and Maggie meet at the altar, only to realize each has made a major mistake,
The Honeymoon's Over
Arnold and Pearl fall into a depression when Maggie and Phillip return from their honeymoon with a temporary eviction no
The Bar Mitzvah Boy
In a quest for religion started by Maggie and his father, Arnold thinks he has found it after attending an impressive ba
Kathy's Olympics
The money for the National Wheelchair Games that Arnold's class has raised and entrusted to him is missing--leaving Arno
The Houseguest
Willis and Charlene's budding young love begins to wilt when she moves in as a temporary houseguest at the Drummond's. J
The Boyfriend
Blinded by love, Kimberly takes an enormous and deceptive risk when she talks her father into allowing her to move into
A Haunting We Will Go
When Arnold and Sam creep through the crevices of the neighborhood's haunted house they find the ghost boasts a bounty o
Arnold and Lisa's Mother
Arnold thinks the school science fair is the perfect opportunity to sabotage the project of his least favorite female cl
Bed-Wetting
The Drummond household is faced with Sam's bed-wetting problem trying everything from scolding to fawning, only to have
Undercover Lover
Willis becomes the middleman in a police effort to halt use and trafficking of drugs at his high school.
Arnold's Strike
Arnold risks expulsion from school when he leads a strike against some new rules he feels are ""unfair.""
Sam's Father
Sam must choose between a penthouse apartment and a honky-tonk club when his real father comes knocking on the Drummond'
Carmella Meets the Gooch
""The Gooch"" returns to taunt Arnold and take on a new target--Sam, only to face his first challenge in the Drummond's
Arnold the Entrepreneur
Entrepreneur Arnold reluctantly allows Sam to be a part of his new scheme, when Sam realizes only Arnold will reap the p
The Honorable Arnold J. Jackson
When Arnold is appointed judge of the school court, he is suddenly faced with jeopardizing a longtime friendship or losi
The Gymnasts
Drummond's surprise meant to encourage an Olympic hopeful felled by a tragic accident backfires when the young man inste
Tonsils
Drummond is a tower of strength for Sam as he prepares to have his tonsils removed, but what will happen when Drummond f
Arnold's Songbird
In order to be elected the entertainment chairman for a school charity fundraiser, Arnold promises to get a celebrity bu
Baseball Blues
Sam persuades a reluctant Mr. Drummond to become the coach of his bad news baseball team and then regrets it after he wi
Arnold Saves the Squirrel
When Sam visits a taping of ""The Sandy Squirrel Show"" he is overcome by the news his favorite television idol is about
Sam Adopts a Grandparent
The Drummonds are concerned when the normally lovable Sam battles with a cynical senior who rejects the Cub Scout's ""Ad
Harry Birthday Drummond
Kimberly returns home from school in Paris to surprise Drummond on his birthday prompting Arnold and Willis to try and m
Sam's New Pal
Sam is taken aback when he realizes his new ""buddy"" is a girl, but Mr. Drummond is even more dumbfounded when the kids
Russian Embassy
When Arnold's rocket for his school project is accidentally set off and lands atop the Russian Embassy, the state depart
Cheers to Arnold
Arnold's attempt to stop a friend from drinking backfires as he's left standing in the boy's bathroom holding a bottle o
A Camping We Will Go
A camping trip with Arnold and Sam intended to strengthen Drummond's relationship with Sam goes awry when Sam's real fat
Beauty is in the Eye of Arnold
Arnold is faced with a dilemma when his friends insist he take a cute cheerleader to the dance instead of the girl Arnol
Blue Collar Drummond
When Drummond is accused of being out of touch with his employee, he secretly takes a job in one of his own factories wo
Street Smarts
Although Arnold boasts he held his own in a mugging, Drummond fears the incident goes deeper than Arnold will admit and
A Special Friend
Arnold and Sam's new friendship with a street performer gets mired in fear and confusion when they discover she has epil
Sam's Missing (1)
A family whose little boy died, forces the father to kidnap Sam, who is shopping for some snacks in a grocery store. Aft
Sam's Missing (2)
The Drummonds, desperate to get Sam back, go on the news to try and advertise to get Sam back. In the meantime Sam risks
Bully for Arnold
Guarding the school bully's girlfriend, Ramona, seems like a simple task to Arnold, until his natural Jackson ""charm""
Love on the Run
Sam and Arnold fear that the time their parents are spending apart is a symptom of an ailing marriage and the boys attem
Willis Goes to College
Willis takes a big step when he leave home for college, but fears his initiation to dorm life is only one of the freshma
Arnold's Job
Arnold's dream of becoming an ""overnight"" success as a photo-journalist run headlong into reality when he gets his fir
A Tale of Two Teachers
Kareem Abdul-Jabbar guest stars as a high school English teacher who gives Arnold a ""classic"" punishment for ""goofing
So You Want to Be a Rock Star
A music instructor ""backs up"" Arnold after he claims to be an expert sax player in order to impress a girl.
Speak No Evil
Father and son are feuding over First Amendment rights when an outraged Arnold objects to a white supremacy organization
Arnold's Bad Rep
Arnold succumbs to peer pressure and boasts he went ""all the way"" with his girlfriend, but his lie puts him in a more
It's My Party and I'll Cry if I Want To
Drummond has ""insured"" that Sam will have an unforgettable birthday party by arranging for a local television personal
Arnold's Initiation
Arnold's initiation into the ""cool"" club at school jeopardizes his friendship with the mildly-retarded dishwasher at t
Bulimia
Arnold suspects that Kimberly has an eating disorder when his slender sister is secretly gorging himself, but not gainin
Sam's Big Brother
Arnold's preoccupation with girls and school leaves younger brother Sam alone and bored until Willis steps in, takes ove
Arnold's Tangled Web
To prevent Drummond from seeing his ""F"" in geometry, Arnold arranges to have Drummond's signature forged on his report
Lifestyles of the Poor and Unknown
Sam's contempt for a classmate who incessantly insults and badgers him is pacified when he learns that the boy is an orp
The Big Bribe
A date with a gorgeous girl has Arnold walking on a cloud, until he learns she was bribed by Willis to go out with him.
The Photo Club
Arnold is disgruntled over being partnered with archenemy Lisa in photography class but his frustration soars when the t
The Front Page
Arnold's feature story about his high school football team threatens to turn into a controversial expose for the school
