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	2,907
2	Day One	8.0	1,188
3	Going Home	8.0	995
4	Hit and Run	7.9	894
5	Into That Good Night	7.9	875
6	Chicago Heat	7.8	838
7	Another Perfect Day	7.7	807
8	9 1/2 Hours	7.6	796
9	ER Confidential	7.9	821
10	Blizzard	8.7	1,144
11	The Gift	7.9	811
12	Happy New Year	7.8	717
13	Luck of the Draw	7.7	722
14	Long Day's Journey	7.9	725
15	Feb 5, '95	7.9	719
16	Make of Two Hearts	7.9	707
17	The Birthday Party	7.7	684
18	Sleepless in Chicago	8.0	734
19	Love's Labor Lost	9.3	1,868
20	Full Moon, Saturday Night	8.0	823
21	House of Cards	7.7	665
22	Men Plan, God Laughs	7.7	656
23	Love Among the Ruins	7.8	677
24	Motherhood	7.8	962
25	Everything Old Is New Again	8.3	746

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	705
2	Summer Run	7.6	638
3	Do One, Teach One, Kill One	7.8	657
4	What Life?	7.8	612
5	And Baby Makes Two	7.9	626
6	Days Like This	7.8	620
7	Hell and High Water	9.1	1,488
8	The Secret Sharer	7.8	616
9	Home	7.7	620
10	A Miracle Happens Here	8.0	639
11	Dead of Winter	7.7	605
12	True Lies	7.5	604
13	It's Not Easy Being Greene	7.8	599
14	The Right Thing	7.8	600
15	Baby Shower	8.0	621
16	The Healers	8.7	897
17	The Match Game	7.6	594
18	A Shift in the Night	8.6	842
19	Fire in the Belly	7.6	577
20	Fevers of Unknown Origin	7.8	592
21	Take These Broken Wings	7.6	622
22	John Carter, M.D.	8.3	649

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	618
2	Let the Games Begin	7.6	563
3	Don't Ask, Don't Tell	7.7	582
4	Last Call	7.8	589
5	Ghosts	7.6	572
6	Fear of Flying	8.3	690
7	No Brain, No Gain	7.7	564
8	Union Station	8.3	740
9	Ask Me No Questions, I'll Tell You No Lies	7.6	567
10	Homeless for the Holidays	8.0	633
11	Night Shift	8.4	747
12	Post Mortem	8.1	683
13	Fortune's Fools	7.7	551
14	Whose Appy Now?	8.1	701
15	The Long Way Around	8.5	1,129
16	Faith	7.8	562
17	Tribes	7.7	558
18	You Bet Your Life	7.6	539
19	Calling Dr. Hathaway	7.6	551
20	Random Acts	8.2	674
21	Make a Wish	7.7	549
22	One More for the Road	8.2	604

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	868
2	Something New	7.5	569
3	Friendly Fire	7.7	553
4	When the Bough Breaks	7.9	560
5	Good Touch, Bad Touch	7.7	527
6	Ground Zero	7.7	540
7	Fathers and Sons	8.3	883
8	Freak Show	7.8	537
9	Obstruction of Justice	7.8	556
10	Do You See What I See?	8.1	662
11	Think Warm Thoughts	7.8	543
12	Sharp Relief	7.7	540
13	Carter's Choice	8.1	623
14	Family Practice	7.6	576
15	Exodus	9.0	1,101
16	My Brother's Keeper	7.7	539
17	A Bloody Mess	7.7	518
18	Gut Reaction	8.0	539
19	Shades of Gray	8.0	592
20	Of Past Regret and Future Fear	7.9	549
21	Suffer the Little Children	7.9	582
22	A Hole in the Heart	8.2	574

Season 5 (1998)

7.89 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	571
2	Split Second	7.7	505
3	They Treat Horses, Don't They?	7.6	517
4	Vanishing Act	7.6	504
5	Masquerade	8.0	527
6	Stuck on You	7.8	512
7	Hazed and Confused	7.7	505
8	The Good Fight	8.4	619
9	Good Luck, Ruth Johnson	7.7	516
10	The Miracle Worker	8.0	512
11	Nobody Doesn't Like Amanda Lee	7.9	522
12	Double Blind	7.6	484
13	Choosing Joi	7.8	500
14	The Storm: Part 1	8.4	691
15	The Storm: Part 2	8.6	732
16	Middle of Nowhere	8.0	669
17	Sticks and Stones	7.6	490
18	Point of Origin	7.8	479
19	Rites of Spring	7.7	493
20	Power	8.1	594
21	Responsible Parties	8.0	602
22	Getting to Know You	7.8	495

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	550
2	Last Rites	7.8	507
3	Greene with Envy	7.9	511
4	Sins of the Fathers	7.6	486
5	Truth & Consequences	7.8	519
6	The Peace of Wild Things	8.2	631
7	Humpty Dumpty	8.0	523
8	Great Expectations	8.6	685
9	How the Finch Stole Christmas	7.9	520
10	Family Matters	7.7	501
11	The Domino Heart	7.9	499
12	Abby Road	7.9	562
13	Be Still My Heart	9.2	1,444
14	All in the Family	9.6	2,455
15	Be Patient	7.9	525
16	Under Control	7.7	523
17	Viable Options	7.6	497
18	Match Made in Heaven	7.5	493
19	The Fastest Year	7.9	516
20	Loose Ends	8.3	563
21	Such Sweet Sorrow	8.6	847
22	May Day	8.7	715

Season 7 (2000)

7.95 avg 22 episodes 8.1 → 8.8 50 min avg

Season 7 episodes — IMDb ratings
#	Title	Rating	Votes
1	Homecoming	8.1	643
2	Sand and Water	8.0	503
3	Mars Attacks	7.7	496
4	Benton Backwards	7.9	493
5	Flight of Fancy	7.8	476
6	The Visit	8.4	579
7	Rescue Me	8.2	622
8	The Dance We Do	8.2	545
9	The Greatest of Gifts	8.0	500
10	Piece of Mind	8.4	660
11	Rock, Paper, Scissors	7.5	462
12	Surrender	7.7	468
13	Thy Will Be Done	7.6	471
14	A Walk in the Woods	7.6	519
15	The Crossing	8.4	591
16	Witch Hunt	7.6	452
17	Survival of the Fittest	7.8	468
18	April Showers	7.9	468
19	Sailing Away	7.9	485
20	Fear of Commitment	7.6	457
21	Where the Heart Is	7.7	475
22	Rampage	8.8	768

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	510
2	The Longer You Stay	8.1	505
3	Blood, Sugar, Sex, Magic	8.0	566
4	Never Say Never	7.9	470
5	Start All Over Again	7.7	444
6	Supplies and Demands	7.6	443
7	If I Should Fall from Grace	7.8	458
8	Partly Cloudy, Chance of Rain	8.5	620
9	Quo Vadis?	7.5	439
10	I'll Be Home for Christmas	8.3	618
11	Beyond Repair	8.2	499
12	A River in Egypt	7.6	463
13	Damage Is Done	8.5	530
14	A Simple Twist of Fate	8.5	529
15	It's All in Your Head	8.1	456
16	Secrets and Lies	8.7	836
17	Bygones	7.9	515
18	Orion in the Sky	9.1	894
19	Brothers and Sisters	7.5	513
20	The Letter	9.1	949
21	On the Beach	9.6	2,486
22	Lockdown	8.6	762

Season 9 (2002)

7.76 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	668
2	Dead Again	7.6	437
3	Insurrection	7.9	467
4	Walk Like a Man	7.5	434
5	A Hopeless Wound	7.8	480
6	One Can Only Hope	7.5	433
7	Tell Me Where It Hurts	7.5	429
8	First Snowfall	8.2	1,548
9	Next of Kin	7.5	432
10	Hindsight	7.6	501
11	A Little Help from My Friends	7.6	437
12	A Saint in the City	7.4	425
13	No Good Deed Goes Unpunished	7.6	429
14	No Strings Attached	7.4	415
15	A Boy Falling Out of the Sky	7.7	421
16	A Thousand Cranes	7.8	448
17	The Advocate	7.7	415
18	Finders Keepers	8.0	434
19	Things Change	7.9	416
20	Foreign Affairs	7.6	420
21	When Night Meets Day	8.1	507
22	Kisangani	8.4	599

Season 10 (2003)

7.87 avg 22 episodes 7.8 → 7.9 47 min avg

Season 10 episodes — IMDb ratings
#	Title	Rating	Votes
1	Now What?	7.8	464
2	The Lost	8.4	688
3	Dear Abby	7.9	468
4	Shifts Happen	7.6	440
5	Out of Africa	8.1	462
6	The Greater Good	7.6	428
7	Death and Taxes	8.0	441
8	Freefall	8.6	671
9	Missing	7.5	423
10	Makemba	7.6	475
11	Touch & Go	7.5	415
12	NICU	8.1	474
13	Get Carter	7.5	433
14	Impulse Control	7.7	426
15	Blood Relations	7.7	417
16	Forgive and Forget	8.0	450
17	The Student	7.7	415
18	Where There's Smoke	8.1	521
19	Just a Touch	7.6	414
20	Abby Normal	7.8	412
21	Midnight	8.5	513
22	Drive	7.9	422

Season 11 (2004)

7.85 avg 22 episodes 7.9 → 8.7 47 min avg

Season 11 episodes — IMDb ratings
#	Title	Rating	Votes
1	One for the Road	7.9	436
2	Damaged	7.7	476
3	Try Carter	7.7	473
4	Fear	8.1	462
5	Intern's Guide to the Galaxy	7.4	421
6	Time of Death	9.0	1,333
7	White Guy, Dark Hair	7.7	401
8	Shot in the Dark	7.5	397
9	Twas the Night	7.7	426
10	Skin	7.9	430
11	Only Connect	7.5	455
12	The Providers	8.2	421
13	Middleman	7.7	396
14	Just as I Am	7.6	445
15	Alone in a Crowd	8.4	671
16	Here and There	7.8	462
17	Back in the World	7.8	432
18	Refusal of Care	7.5	403
19	Ruby Redux	7.9	419
20	You Are Here	7.5	390
21	Carter est Amoureux	7.5	416
22	The Show Must Go On	8.7	619

Season 12 (2005)

7.70 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	444
2	Nobody's Baby	7.5	410
3	Man with No Name	7.4	460
4	Blame It on the Rain	7.8	405
5	Wake Up	7.7	440
6	Dream House	7.4	421
7	The Human Shield	7.8	425
8	Two Ships	8.3	474
9	I Do	7.7	400
10	All About Christmas Eve	7.8	431
11	If Not Now	7.4	409
12	Split Decisions	7.7	453
13	Body & Soul	8.2	623
14	Quintessence of Dust	7.6	407
15	Darfur	7.2	416
16	Out on a Limb	7.4	379
17	Lost in America	7.6	376
18	Strange Bedfellows	7.6	383
19	No Place to Hide	7.6	406
20	There Are No Angels Here	7.7	466
21	The Gallant Hero & the Tragic Victor	8.2	493
22	Twenty-One Guns	8.8	804

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	602
2	Graduation Day	7.9	449
3	Somebody to Love	7.4	423
4	Parenthood	7.4	400
5	Ames v. Kovac	7.6	417
6	Heart of the Matter	7.5	386
7	Jigsaw	7.9	566
8	Reason to Believe	7.3	413
9	Scoop and Run	7.9	450
10	Tell Me No Secrets...	7.7	402
11	City of Mercy	7.6	404
12	Breach of Trust	7.7	400
13	A House Divided	7.7	410
14	Murmurs of the Heart	8.0	562
15	Dying Is Easy...	7.5	399
16	Crisis of Conscience	7.3	386
17	From Here to Paternity	7.4	371
18	Photographs and Memories	7.5	398
19	Family Business	7.6	376
20	Lights Out	7.5	365
21	I Don't	8.2	505
22	Sea Change	7.6	374
23	The Honeymoon Is Over	7.7	471

Season 14 (2007)

7.46 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	419
2	In a Different Light	7.4	390
3	Officer Down	7.5	367
4	Gravity	7.5	368
5	Under the Influence	7.4	366
6	The Test	7.3	382
7	Blackout	7.6	405
8	Coming Home	7.3	363
9	Skye's the Limit	7.4	364
10	300 Patients	7.7	387
11	Status Quo	7.6	403
12	Believe the Unseen	7.4	356
13	Atonement	7.2	398
14	Owner of a Broken Heart	7.1	373
15	...As the Day She Was Born	7.2	353
16	Truth Will Out	7.3	356
17	Under Pressure	7.8	407
18	Tandem Repeats	7.5	360
19	The Chicago Way	7.9	505

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	765
2	Another Thursday at County	7.6	402
3	The Book of Abby	8.5	644
4	Parental Guidance	7.5	388
5	Haunted	7.5	402
6	Oh, Brother	7.4	471
7	Heal Thyself	8.9	753
8	Age of Innocence	7.7	411
9	Let It Snow	7.8	389
10	The High Holiday	7.3	377
11	Separation Anxiety	7.2	359
12	Dream Runner	7.4	474
13	Love Is a Battlefield	7.2	372
14	A Long, Strange Trip	8.4	599
15	The Family Man	7.4	385
16	The Beginning of the End	8.0	491
17	T-Minus-6	7.5	391
18	What We Do	7.9	501
19	Old Times	9.1	1,044
20	Shifting Equilibrium	7.9	427
21	I Feel Good	7.8	525
22	And in the End...	9.2	1,500

ER (1994)

Cast

Seasons