Happy Days
S03E08
“Howard's 45th Fiasco”
The Cunningham family unintentionally make things worse when they stage a "This Is Your Life" birthday evening to try to lift 45-year-old Howard out of a mid-life crisis.
Birthday
5 EPS 
Happy Days
S03E16
“The Happy Days 2nd Anniversary Special”
Fonzie's friends reminisce about the impact he's made on their lives when the Cunninghams throw him a surprise birthday party at Arnold's Drive-In.
Happy Days
S06E07
“Sweet Sixteen”
A two-timing star quarterback may leave Joanie dateless for her own sweet sixteen birthday party.
Happy Days
S09E17
“Hi Yo Fonzie, Away”
Howard and Chachi go above and beyond to try to win a dinner with the Lone Ranger for Fonzie's birthday while the Fonz begins to wonder if he should start thinking about settling down with just one girl.
Happy Days
S10E17
“I'm Not at Liberty”
The Fonz keeps his cool after a clerical error lands him and his 4-F knee in an Army reserves training camp just before little Heather's birthday; but he doesn't know that his commanding officer is someone he knows...and hates...all too well, and who believes that he finally has…
Wedding
2 EPS
Happy Days
S03E24
“Arnold's Wedding”
Best man Fonzie's fears that Arnold's wedding plans will be ruined by the Fonzarelli Curse appear to come true after the groom's newly arrived Japanese bride-to-be calls the whole thing off
Happy Days
S07E01
“Shotgun Wedding (1)”
Richie and Fonzie take a break from a Cunningham camp-out at Lake Pinewood to visit two pretty maids on a nearby dairy farm, taking care to avoid their over-protective father... and his shotgun!
Valentine's Day
1 EP
Happy Days
S05E20
“Be My Valentine”
Romance and nostalgia humorously combine as the Cunninghams and their friends celebrate a merrily musical Valentine's Day.
Graduation
2 EPS
Happy Days
S04E18
“Graduation (1)”
Marion Cunningham is forced to reveal Fonzie's secret plan to graduate with Richie's senior class just before Principal Conners' startling announcement at the high school prom that puts the graduation ceremony itself in jeopardy.
Happy Days
S04E19
“Graduation (2)”
Fonzie's friends convince their principal to let the night school graduate participate in Jefferson High School's commencement ceremony, but then must find a way to help the Fonz make his valedictory speech.
Halloween
3 EPS
Happy Days
S02E06
“Haunted”
After experiencing a few strange happenings, Richie begins to buy into the legend that the place where their Halloween party is to be held, the old Simpson house, is haunted.
Happy Days
S05E06
“Fonsillectomy”
Forced to spend the night in the hospital's children's ward, Fonzie worries more about who will be making time with his girl at the Halloween party than the tonsillectomy he's scheduled for the next morning.
Happy Days
S06E09
“The Evil Eye”
Richie and his pals perform a Halloween exorcism after Al Delvecchio's right arm is cursed to do the bidding of an old witch with the evil eye.
Thanksgiving
1 EP
Happy Days
S06E12
“The First Thanksgiving”
Marion Cunningham tells a tale of the first Thanksgiving to remind her family that the Pilgrims gathered around the table for fellowship, not around the television for football.
Christmas
4 EPS
Happy Days
S02E11
“Guess Who's Coming to Christmas”
The Cunningham family Christmas is all set but Richie finds out Fonzie (despite being popular) is alone this holiday. So, Richie decides to ask his folks to let him join them ...but will his folks or Fonzie accept?
Happy Days
S06E16
“Christmas Time”
A cold, snowy Wisconson Christmas finds Howard Cunningham trying to convince his family to put up a new-fangled, artificial tree, and a mysterious sailor delivers a gift from Fonzie's father, forcing the Fonz to deal with his long-suppressed feelings of abandonment.
Happy Days
S08E06
“White Christmas”
On a very snowy Christmas eve, Marion frets over Richie's absence, Fonzie and his friends are stuck in Al's restaurant, and Joanie uses the time spent snowbound with her dad in the hardware store to try to convince him to let her spend summer in New York City with Jenny Piccalo.
Happy Days
S10E10
“All I Want for Christmas”
Howard Cunningham dreads his quarrelsome older brother's Christmas visit and little Heather Pfister asks Santa Claus to help her mother, Ashley, make-up with the parents who disinherited her for marrying against their wishes.
Dedicated guides
Happy Days Birthday episodes
Happy Days Christmas episodes
Happy Days Halloween episodes
Happy Days Graduation episodes
Happy Days Wedding episodes
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