Season 1 (1994)

7.98 avg 25 episodes 8.6 → 8.3 52 min avg

Season 1 episodes - IMDb ratings
#	Title	Rating	Votes
1	24 Hours	8.6	2,955
2	Day One	8.0	1,217
3	Going Home	8.0	1,023
4	Hit and Run	7.9	919
5	Into That Good Night	7.9	901
6	Chicago Heat	7.8	866
7	Another Perfect Day	7.7	832
8	9 1/2 Hours	7.6	824
9	ER Confidential	7.9	849
10	Blizzard	8.7	1,179
11	The Gift	7.9	839
12	Happy New Year	7.8	745
13	Luck of the Draw	7.7	750
14	Long Day's Journey	7.9	752
15	Feb 5, '95	7.9	744
16	Make of Two Hearts	7.9	733
17	The Birthday Party	7.7	708
18	Sleepless in Chicago	8.0	759
19	Love's Labor Lost	9.3	1,905
20	Full Moon, Saturday Night	8.0	848
21	House of Cards	7.7	690
22	Men Plan, God Laughs	7.7	679
23	Love Among the Ruins	7.8	701
24	Motherhood	7.8	989
25	Everything Old Is New Again	8.3	773

Season 2 (1995)

7.92 avg 22 episodes 7.8 → 8.3 49 min avg

Season 2 episodes - IMDb ratings
#	Title	Rating	Votes
1	Welcome Back Carter!	7.8	727
2	Summer Run	7.6	660
3	Do One, Teach One, Kill One	7.8	677
4	What Life?	7.8	630
5	And Baby Makes Two	7.9	645
6	Days Like This	7.8	639
7	Hell and High Water	9.1	1,519
8	The Secret Sharer	7.8	635
9	Home	7.7	639
10	A Miracle Happens Here	8.0	662
11	Dead of Winter	7.7	624
12	True Lies	7.5	623
13	It's Not Easy Being Greene	7.7	618
14	The Right Thing	7.8	618
15	Baby Shower	8.0	640
16	The Healers	8.7	915
17	The Match Game	7.6	611
18	A Shift in the Night	8.7	866
19	Fire in the Belly	7.6	594
20	Fevers of Unknown Origin	7.8	609
21	Take These Broken Wings	7.6	638
22	John Carter, M.D.	8.3	668

Season 3 (1996)

7.92 avg 22 episodes 8.0 → 8.2 52 min avg

Season 3 episodes - IMDb ratings
#	Title	Rating	Votes
1	Doctor Carter, I Presume	8.0	633
2	Let the Games Begin	7.6	577
3	Don't Ask, Don't Tell	7.7	595
4	Last Call	7.8	603
5	Ghosts	7.6	587
6	Fear of Flying	8.3	706
7	No Brain, No Gain	7.7	579
8	Union Station	8.3	758
9	Ask Me No Questions, I'll Tell You No Lies	7.6	583
10	Homeless for the Holidays	8.0	649
11	Night Shift	8.4	768
12	Post Mortem	8.1	699
13	Fortune's Fools	7.7	566
14	Whose Appy Now?	8.1	716
15	The Long Way Around	8.5	1,150
16	Faith	7.8	576
17	Tribes	7.7	572
18	You Bet Your Life	7.6	551
19	Calling Dr. Hathaway	7.6	563
20	Random Acts	8.2	686
21	Make a Wish	7.7	561
22	One More for the Road	8.2	621

Season 4 (1997)

7.92 avg 22 episodes 8.1 → 8.2 52 min avg

Mid-peak

Season 4 episodes - IMDb ratings
#	Title	Rating	Votes
1	Ambush	8.1	888
2	Something New	7.5	582
3	Friendly Fire	7.7	565
4	When the Bough Breaks	7.9	572
5	Good Touch, Bad Touch	7.7	538
6	Ground Zero	7.7	551
7	Fathers and Sons	8.4	903
8	Freak Show	7.8	549
9	Obstruction of Justice	7.8	568
10	Do You See What I See?	8.1	677
11	Think Warm Thoughts	7.8	555
12	Sharp Relief	7.7	552
13	Carter's Choice	8.1	640
14	Family Practice	7.6	591
15	Exodus	9.0	1,125
16	My Brother's Keeper	7.7	552
17	A Bloody Mess	7.7	531
18	Gut Reaction	8.0	553
19	Shades of Gray	8.0	608
20	Of Past Regret and Future Fear	7.9	562
21	Suffer the Little Children	7.9	596
22	A Hole in the Heart	8.2	590

Season 5 (1998)

7.90 avg 22 episodes 7.8 → 7.8 47 min avg

Mid-peak

Season 5 episodes - IMDb ratings
#	Title	Rating	Votes
1	Day for Knight	7.8	586
2	Split Second	7.7	518
3	They Treat Horses, Don't They?	7.6	531
4	Vanishing Act	7.6	518
5	Masquerade	8.0	541
6	Stuck on You	7.8	524
7	Hazed and Confused	7.7	516
8	The Good Fight	8.4	636
9	Good Luck, Ruth Johnson	7.7	527
10	The Miracle Worker	8.0	524
11	Nobody Doesn't Like Amanda Lee	7.9	536
12	Double Blind	7.6	496
13	Choosing Joi	7.8	513
14	The Storm: Part 1	8.4	709
15	The Storm: Part 2	8.6	752
16	Middle of Nowhere	8.0	683
17	Sticks and Stones	7.6	500
18	Point of Origin	7.8	489
19	Rites of Spring	7.7	504
20	Power	8.2	608
21	Responsible Parties	8.0	613
22	Getting to Know You	7.8	507

Season 6 (1999)

8.10 avg 22 episodes 7.8 → 8.7 48 min avg

Mid-peak

Season 6 episodes - IMDb ratings
#	Title	Rating	Votes
1	Leave It to Weaver	7.8	561
2	Last Rites	7.8	517
3	Greene with Envy	7.9	520
4	Sins of the Fathers	7.6	496
5	Truth & Consequences	7.8	528
6	The Peace of Wild Things	8.2	645
7	Humpty Dumpty	8.0	534
8	Great Expectations	8.6	697
9	How the Finch Stole Christmas	7.9	531
10	Family Matters	7.7	512
11	The Domino Heart	7.9	510
12	Abby Road	7.9	570
13	Be Still My Heart	9.2	1,473
14	All in the Family	9.6	2,535
15	Be Patient	7.9	536
16	Under Control	7.7	531
17	Viable Options	7.6	506
18	Match Made in Heaven	7.5	502
19	The Fastest Year	7.9	525
20	Loose Ends	8.3	579
21	Such Sweet Sorrow	8.7	862
22	May Day	8.7	731

Season 7 (2000)

7.94 avg 22 episodes 8.1 → 8.8 50 min avg

Season 7 episodes - IMDb ratings
#	Title	Rating	Votes
1	Homecoming	8.1	658
2	Sand and Water	8.0	516
3	Mars Attacks	7.7	506
4	Benton Backwards	7.9	505
5	Flight of Fancy	7.8	487
6	The Visit	8.4	595
7	Rescue Me	8.2	635
8	The Dance We Do	8.2	555
9	The Greatest of Gifts	8.0	511
10	Piece of Mind	8.4	675
11	Rock, Paper, Scissors	7.5	471
12	Surrender	7.6	477
13	Thy Will Be Done	7.6	481
14	A Walk in the Woods	7.6	528
15	The Crossing	8.4	605
16	Witch Hunt	7.6	461
17	Survival of the Fittest	7.8	477
18	April Showers	7.9	479
19	Sailing Away	7.9	497
20	Fear of Commitment	7.6	468
21	Where the Heart Is	7.7	486
22	Rampage	8.8	786

Season 8 (2001)

8.20 avg 22 episodes 7.7 → 8.6 48 min avg

Rollercoaster

Season 8 episodes - IMDb ratings
#	Title	Rating	Votes
1	Four Corners	7.7	524
2	The Longer You Stay	8.1	518
3	Blood, Sugar, Sex, Magic	8.0	576
4	Never Say Never	7.9	481
5	Start All Over Again	7.7	455
6	Supplies and Demands	7.6	453
7	If I Should Fall from Grace	7.8	469
8	Partly Cloudy, Chance of Rain	8.5	635
9	Quo Vadis?	7.5	455
10	I'll Be Home for Christmas	8.3	637
11	Beyond Repair	8.1	516
12	A River in Egypt	7.6	477
13	Damage Is Done	8.5	548
14	A Simple Twist of Fate	8.5	546
15	It's All in Your Head	8.1	473
16	Secrets and Lies	8.7	862
17	Bygones	7.9	532
18	Orion in the Sky	9.1	920
19	Brothers and Sisters	7.5	528
20	The Letter	9.1	976
21	On the Beach	9.6	2,570
22	Lockdown	8.6	787

Season 9 (2002)

7.75 avg 22 episodes 8.4 → 8.4 49 min avg

U-shaped

Season 9 episodes - IMDb ratings
#	Title	Rating	Votes
1	Chaos Theory	8.4	690
2	Dead Again	7.6	455
3	Insurrection	7.9	484
4	Walk Like a Man	7.5	451
5	A Hopeless Wound	7.8	498
6	One Can Only Hope	7.5	452
7	Tell Me Where It Hurts	7.5	446
8	First Snowfall	8.2	1,569
9	Next of Kin	7.5	451
10	Hindsight	7.5	519
11	A Little Help from My Friends	7.5	454
12	A Saint in the City	7.4	443
13	No Good Deed Goes Unpunished	7.6	446
14	No Strings Attached	7.4	433
15	A Boy Falling Out of the Sky	7.7	440
16	A Thousand Cranes	7.8	465
17	The Advocate	7.7	433
18	Finders Keepers	8.0	452
19	Things Change	7.9	435
20	Foreign Affairs	7.6	439
21	When Night Meets Day	8.1	529
22	Kisangani	8.4	624

Season 10 (2003)

7.87 avg 22 episodes 7.8 → 7.9 47 min avg

Mid-peak

Season 10 episodes - IMDb ratings
#	Title	Rating	Votes
1	Now What?	7.8	484
2	The Lost	8.4	710
3	Dear Abby	7.9	488
4	Shifts Happen	7.6	459
5	Out of Africa	8.1	480
6	The Greater Good	7.6	444
7	Death and Taxes	8.0	461
8	Freefall	8.7	696
9	Missing	7.5	441
10	Makemba	7.6	497
11	Touch & Go	7.5	432
12	NICU	8.1	491
13	Get Carter	7.5	449
14	Impulse Control	7.7	447
15	Blood Relations	7.7	432
16	Forgive and Forget	8.0	466
17	The Student	7.7	431
18	Where There's Smoke	8.1	540
19	Just a Touch	7.5	430
20	Abby Normal	7.8	431
21	Midnight	8.4	530
22	Drive	7.9	439

Season 11 (2004)

7.81 avg 22 episodes 7.9 → 8.6 47 min avg

Season 11 episodes - IMDb ratings
#	Title	Rating	Votes
1	One for the Road	7.9	460
2	Damaged	7.6	498
3	Try Carter	7.7	495
4	Fear	8.1	486
5	Intern's Guide to the Galaxy	7.3	443
6	Time of Death	9.0	1,381
7	White Guy, Dark Hair	7.7	421
8	Shot in the Dark	7.5	416
9	Twas the Night	7.7	446
10	Skin	7.8	454
11	Only Connect	7.5	474
12	The Providers	8.2	442
13	Middleman	7.7	413
14	Just as I Am	7.5	467
15	Alone in a Crowd	8.4	696
16	Here and There	7.7	483
17	Back in the World	7.7	451
18	Refusal of Care	7.4	420
19	Ruby Redux	7.9	436
20	You Are Here	7.5	408
21	Carter est Amoureux	7.5	434
22	The Show Must Go On	8.6	641

Season 12 (2005)

7.69 avg 22 episodes 7.0 → 8.8 48 min avg

Big finale

Season 12 episodes - IMDb ratings
#	Title	Rating	Votes
1	Cañon City	7.0	465
2	Nobody's Baby	7.5	429
3	Man with No Name	7.4	478
4	Blame It on the Rain	7.8	421
5	Wake Up	7.7	458
6	Dream House	7.4	439
7	The Human Shield	7.8	444
8	Two Ships	8.3	494
9	I Do	7.6	420
10	All About Christmas Eve	7.8	451
11	If Not Now	7.4	428
12	Split Decisions	7.7	469
13	Body & Soul	8.2	643
14	Quintessence of Dust	7.6	425
15	Darfur	7.2	434
16	Out on a Limb	7.4	396
17	Lost in America	7.6	393
18	Strange Bedfellows	7.5	399
19	No Place to Hide	7.6	422
20	There Are No Angels Here	7.7	484
21	The Gallant Hero & the Tragic Victor	8.2	513
22	Twenty-One Guns	8.8	827

Season 13 (2006)

7.67 avg 23 episodes 8.6 → 7.7 48 min avg

Season 13 episodes - IMDb ratings
#	Title	Rating	Votes
1	Bloodline	8.6	624
2	Graduation Day	7.9	468
3	Somebody to Love	7.4	441
4	Parenthood	7.4	416
5	Ames v. Kovac	7.6	432
6	Heart of the Matter	7.5	403
7	Jigsaw	7.9	581
8	Reason to Believe	7.2	429
9	Scoop and Run	7.9	466
10	Tell Me No Secrets...	7.7	414
11	City of Mercy	7.6	419
12	Breach of Trust	7.7	415
13	A House Divided	7.7	426
14	Murmurs of the Heart	8.0	580
15	Dying Is Easy...	7.5	415
16	Crisis of Conscience	7.3	400
17	From Here to Paternity	7.4	381
18	Photographs and Memories	7.5	408
19	Family Business	7.6	387
20	Lights Out	7.5	376
21	I Don't	8.2	518
22	Sea Change	7.6	386
23	The Honeymoon Is Over	7.7	484

Season 14 (2007)

7.45 avg 19 episodes 7.7 → 7.9 48 min avg

Season 14 episodes - IMDb ratings
#	Title	Rating	Votes
1	The War Comes Home	7.7	428
2	In a Different Light	7.4	399
3	Officer Down	7.5	376
4	Gravity	7.5	377
5	Under the Influence	7.4	376
6	The Test	7.3	394
7	Blackout	7.5	420
8	Coming Home	7.3	376
9	Skye's the Limit	7.3	376
10	300 Patients	7.6	400
11	Status Quo	7.6	415
12	Believe the Unseen	7.4	368
13	Atonement	7.2	411
14	Owner of a Broken Heart	7.1	385
15	...As the Day She Was Born	7.2	364
16	Truth Will Out	7.3	369
17	Under Pressure	7.8	423
18	Tandem Repeats	7.5	371
19	The Chicago Way	7.9	517

Season 15 (2008)

7.90 avg 22 episodes 8.6 → 9.2 49 min avg

Season 15 episodes - IMDb ratings
#	Title	Rating	Votes
1	Life After Death	8.6	786
2	Another Thursday at County	7.5	415
3	The Book of Abby	8.5	660
4	Parental Guidance	7.5	401
5	Haunted	7.5	414
6	Oh, Brother	7.4	483
7	Heal Thyself	8.9	772
8	Age of Innocence	7.7	423
9	Let It Snow	7.8	399
10	The High Holiday	7.3	388
11	Separation Anxiety	7.2	372
12	Dream Runner	7.4	486
13	Love Is a Battlefield	7.2	383
14	A Long, Strange Trip	8.4	615
15	The Family Man	7.4	397
16	The Beginning of the End	8.0	504
17	T-Minus-6	7.5	404
18	What We Do	7.9	512
19	Old Times	9.1	1,059
20	Shifting Equilibrium	7.9	436
21	I Feel Good	7.8	537
22	And in the End...	9.2	1,521

ER (1994)

Cast

Seasons