Season 1 (1974)

7.58 avg 16 episodes 7.4 → 7.5 29 min avg

Season 1 episodes — IMDb ratings
#	Title	Rating	Votes
1	All the Way	7.4	389
2	The Lemon	7.6	299
3	Richie's Cup Runneth Over	7.8	277
4	Guess Who's Coming to Visit	7.6	269
5	Hardware Jungle	7.5	239
6	The Deadly Dares	7.6	253
7	Fonzie Drops In	7.6	242
8	The Skin Game	7.5	235
9	Breaking Up Is Hard to Do	7.5	218
10	Give the Band a Hand	7.6	220
11	Because She's There	7.7	234
12	In the Name of Love	7.4	204
13	Great Expectations	7.3	210
14	The Best Man	7.9	220
15	Knock Around the Block	7.8	222
16	Be the First on Your Block	7.5	201

Season 2 (1974)

7.68 avg 23 episodes 7.5 → 7.3 27 min avg

Season 2 episodes — IMDb ratings
#	Title	Rating	Votes
1	Richie Moves Out	7.5	239
2	Richie's Car	7.8	222
3	Who's Sorry Now?	7.8	183
4	You Go to My Head	7.3	192
5	R.O.T.C.	6.6	185
6	Haunted	8.2	255
7	Wish Upon a Star	7.9	203
8	Not with My Sister, You Don't	7.8	202
9	Big Money	7.7	174
10	A Star Is Bored	7.5	175
11	Guess Who's Coming to Christmas	8.7	442
12	Open House	7.8	199
13	Fonzie's Getting Married	7.6	190
14	The Cunningham Caper	8.0	210
15	The Not Making of a President	7.5	192
16	Cruisin'	7.5	203
17	The Howdy Doody Show	7.7	176
18	Get a Job	8.1	200
19	Fonzie Joins the Band	7.5	172
20	Fish and the Fins	8.0	197
21	Richie's Flip Side	7.0	176
22	Kiss Me Sickly	7.8	186
23	Goin' to Chicago	7.3	174

Season 3 (1975)

7.68 avg 24 episodes 7.8 → 7.4 25 min avg

Season 3 episodes — IMDb ratings
#	Title	Rating	Votes
1	Fonzie Moves In	7.8	181
2	The Motorcycle	8.0	175
3	Fearless Fonzarelli: Part 1	7.7	188
4	Fearless Fonzarelli: Part 2	7.8	176
5	The Other Richie Cunningham	7.9	159
6	Richie Fights Back	8.3	174
7	Jailhouse Rock	7.7	141
8	Howard's 45th Fiasco	7.2	139
9	Fonzie the Flatfoot	7.6	150
10	A Date with Fonzie	8.4	182
11	Three on a Porch	7.9	153
12	Fonzie's New Friend	7.8	146
13	They Call It Potsie Love	8.0	162
14	Tell It to the Marines	7.2	146
15	Dance Contest	8.2	159
16	The Second Anniversary Show	7.2	130
17	Fonzie the Salesman	7.6	146
18	Football Frolics	7.4	148
19	Fonzie the Superstar	7.4	145
20	Two Angry Men	7.5	146
21	Beauty Contest	7.5	144
22	Bringing Up Spike	7.2	148
23	A Sight for Sore Eyes	7.7	156
24	Arnold's Wedding	7.4	148

Season 4 (1976)

7.47 avg 25 episodes 7.3 → 6.9 26 min avg

Season 4 episodes — IMDb ratings
#	Title	Rating	Votes
1	Fonzie Loves Pinky: Part 1	7.3	158
2	Fonzie Loves Pinky: Part 2	6.9	161
3	Fonzie Loves Pinky: Part 3	7.0	141
4	A Mind of His Own	7.9	134
5	Fonzie the Father	7.5	123
6	Fonzie's Hero	7.9	135
7	A Place of His Own	8.1	133
8	They Shoot Fonzies, Don't They?	8.2	147
9	The Muckrakers	7.5	125
10	A.K.A. the Fonz	7.8	139
11	Richie Branches Out	7.1	158
12	Fonzie's Old Lady	7.5	132
13	Time Capsule	7.6	125
14	The Book of Records	7.3	124
15	A Shot in the Dark	8.0	133
16	Marion Rebels	7.5	125
17	The Third Anniversary Show	6.5	109
18	The Graduation: Part 1	7.4	125
19	The Graduation: Part 2	7.6	121
20	The Physical	8.1	133
21	Joanie's Weird Boyfriend	7.8	138
22	Fonz-How, Inc.	7.3	121
23	Spunky Come Home	6.9	127
24	The Last of the Big Time Malphs	7.2	128
25	Fonzie's Baptism	6.9	120

Season 5 (1977)

7.06 avg 27 episodes 6.6 → 7.3 30 min avg

Season 5 episodes — IMDb ratings
#	Title	Rating	Votes
1	Hollywood: Part 1	6.6	139
2	Hollywood: Part 2	6.9	138
3	Hollywood: Part 3	6.5	170
4	Hard Cover	7.9	136
5	My Cousin the Cheat	6.7	114
6	Fonsillectomy	7.5	128
7	The Apartment	7.1	118
8	Fonzie, Rock Entrepreneur: Part 1	7.2	123
9	Fonzie, Rock Entrepreneur: Part 2	7.2	113
10	My Fair Fonzie	7.6	118
11	Bye Bye Blackball	6.9	105
12	Requiem for a Malph	7.1	116
13	Nose for News	7.1	106
14	Grandpa's Visit	6.8	107
15	Potsie Gets Pinned	7.1	110
16	Joanie's First Kiss	7.3	121
17	Marion's Misgivings	7.1	108
18	Richie Almost Dies	8.0	165
19	Spunkless Spunky	6.4	108
20	Be My Valentine	5.8	125
21	Our Gang	7.2	106
22	My Favorite Orkan	8.5	257
23	Richie's Girl Exposes the Cunninghams	6.4	105
24	Do You Want to Dance?	6.5	122
25	Second Wind	6.8	104
26	Rules to Date By	7.0	108
27	Fonzie for the Defense	7.3	117

Season 6 (1978)

6.94 avg 27 episodes 6.5 → 7.4 30 min avg

Season 6 episodes — IMDb ratings
#	Title	Rating	Votes
1	Westward Ho!: Part 1	6.5	116
2	Westward Ho!: Part 2	6.0	108
3	Westward Ho!: Part 3	6.3	101
4	Fonzie's Blindness	7.3	142
5	Casanova Cunningham	6.5	111
6	Kid Stuff	7.2	110
7	Sweet Sixteen	6.6	103
8	Fearless Malph	7.0	116
9	The Evil Eye	6.3	122
10	The Claw Meets the Fonz	7.1	109
11	The Fonz Is Allergic to Girls	6.8	101
12	The First Thanksgiving	6.8	138
13	The Kissing Bandit	7.1	103
14	The Magic Show	6.4	104
15	Richie Gets Framed	7.0	101
16	Christmas Time	7.5	161
17	Smokin' Ain't Cool	7.1	116
18	Ralph vs. Potsie	7.1	103
19	Stolen Melodies	6.9	101
20	Married Strangers	6.6	99
21	Marion: Fairy Godmother	7.2	104
22	Fonzie's Funeral: Part 1	7.4	121
23	Fonzie's Funeral: Part 2	7.8	126
24	Mork Returns	7.3	148
25	The Duel	7.5	159
26	Chachi's Incredo Wax	6.7	97
27	Potsie Quits School	7.4	115

Season 7 (1979)

6.84 avg 25 episodes 6.4 → 6.8

Season 7 episodes — IMDb ratings
#	Title	Rating	Votes
1	Shotgun Wedding: Part 1	6.4	111
2	Chachi Sells His Soul	5.3	113
3	Fonzie Meets Kat	7.0	103
4	Marion Goes to Jail	7.1	91
5	Richie's Job	6.9	92
6	Richie Falls in Love	6.6	96
7	Fonzie's a Thespian	6.8	91
8	Burlesque	6.7	98
9	Joanie Busts Out	7.6	97
10	King Richard's Big Knight	7.0	95
11	Fonzie vs. the She-Devils	7.3	101
12	The Mechanic	6.4	100
13	They're Closing Inspiration Point	6.6	93
14	Here Comes the Bride, Again	6.9	92
15	Ah, Wilderness	6.9	108
16	Joanie's Dilemma	6.6	95
17	Hot Stuff	7.7	109
18	The New Arnold's	7.2	97
19	The Hucksters	6.7	89
20	Allison	7.2	100
21	Fools Rush In	7.2	94
22	Father and Son	7.0	93
23	A Potsie Is Born	7.0	92
24	The Roaring Twenties	6.2	95
25	Ralph's Family Problem	6.8	102

Season 8 (1980)

6.36 avg 22 episodes 6.4 → 5.3 30 min avg

Bad finale

Season 8 episodes — IMDb ratings
#	Title	Rating	Votes
1	No Tell Motel	6.4	102
2	Live and Learn	6.1	99
3	Dreams Can Come True	6.1	93
4	Hello, Roger	6.4	99
5	Joanie Gets Wheels	6.6	89
6	White Christmas	6.6	114
7	And the Winner Is...	6.3	85
8	If You Knew Rosa	6.5	89
9	The Sixth Sense	6.1	86
10	It Only Hurts When I Smile	6.3	92
11	Welcome to My Nightmare	6.1	97
12	Broadway It's Not	6.3	91
13	Bride and Gloom	6.7	93
14	Hello, Mrs. Arcola	6.8	94
15	Fonzie Gets Shot	6.2	109
16	Potsie on His Own	6.2	89
17	Tall Story	7.0	90
18	Scholarship	6.1	84
19	R.C. and L.B. Forever	6.5	93
20	Howard's Bowling Buddy	6.6	90
21	Mother and Child Reunion	6.7	97
22	American Musical	5.3	121

Season 9 (1981)

6.46 avg 22 episodes 6.5 → 6.5 30 min avg

Season 9 episodes — IMDb ratings
#	Title	Rating	Votes
1	Home Movies: Part 1	6.5	96
2	Home Movies: Part 2	6.5	91
3	Not with My Mother, You Don't	6.4	82
4	Another Night at Antoine's	6.4	84
5	Little Baby Cunningham	6.8	92
6	The Other Guy	6.3	86
7	Fonzie the Substitute	6.9	87
8	Just a Piccalo	6.7	101
9	No, Thank You.	6.1	89
10	Baby, It's Cold Inside	6.3	80
11	Hello, Tough Guy	6.3	84
12	To Beanie or Not to Beanie	6.3	87
13	Southern Crossing	6.7	111
14	Grandma Nussbaum	6.9	99
15	Poobah Doo Dah	6.0	88
16	A Touch of Classical	6.1	87
17	Hi Yo, Fonzie Away	7.1	97
18	Great Expectations	6.4	85
19	Hello, Flip	6.1	84
20	Chachi's Future	6.1	85
21	Tell-Tale Tart	6.7	88
22	Love and Marriage	6.5	86

Season 10 (1982)

6.43 avg 22 episodes 6.8 → 6.0 30 min avg

Season 10 episodes — IMDb ratings
#	Title	Rating	Votes
1	A Woman Not Under the Influence	6.8	95
2	Letting Go	6.4	87
3	Empty Nest	6.8	88
4	A Night at the Circus	6.5	98
5	A Little Case of Revenge	6.9	122
6	Who Gives a Hootenanny	6.1	85
7	Going Steady	7.1	96
8	Such a Nice Girl	6.3	85
9	There's No Business Like No Business	6.8	86
10	All I Want for Christmas	6.4	109
11	Since I Don't Have You	6.2	83
12	Hello, Pfisters	7.0	87
13	I Drink, Therefore I Am	6.6	87
14	Prisoner of Love	6.4	87
15	Life Is More Important Than Show Business	6.0	85
16	Nervous Romance	6.3	88
17	I'm Not at Liberty	6.3	84
18	Wild Blue Yonder	6.0	88
19	May the Best Man Win	6.3	86
20	Babysitting	5.9	85
21	Turn Around... And You're Home	6.4	87
22	Affairs of the Heart	6.0	87

Season 11 (1983)

6.54 avg 22 episodes 6.0 → 7.0 30 min avg

Rollercoaster

Season 11 episodes — IMDb ratings
#	Title	Rating	Votes
1	Because It's There	6.0	92
2	The Ballad of Joanie and Chachi	6.2	85
3	Where the Guys Are	6.6	101
4	Welcome Home: Part 1	7.6	114
5	Welcome Home: Part 2	7.6	104
6	Glove Story	5.9	93
7	Vocational Education	6.7	99
8	Arthur, Arthur	6.3	94
9	You Get What You Pay For	6.0	94
10	Kiss Me, Teach	6.6	100
11	The People vs. the Fonz	6.7	95
12	Like Mother, Like Daughter	6.1	92
13	Social Studies	5.9	83
14	The Spirit Is Willing	7.1	105
15	Fonzie Moves Out	6.3	92
16	Passages: Part 1	7.2	98
17	Passages: Part 2	7.8	129
18	So How Was Your Weekend?	6.2	89
19	Low Notes	5.8	88
20	School Dazed	6.3	99
21	Good News, Bad News	5.9	92
22	Fonzie's Spots	7.0	111

Happy Days (1974)

Cast

Seasons