ER: Every Opening Title Sequence

To celebrate 1000 subscribers, we've collected together every single iteration of the iconic ER opening title sequence throughout the years. Which one is your favorite?

The ER theme tune was composed by James Newton Howard and the title sequence was designed by Billy Pittard and Suzanne Kiley. At the 47th Emmy Awards in 1995, Howard was nominated for Oustanding Main Title Theme Music, and Pittard and Kiley won Oustanding Main Titles Design.

Timestamps below so you can jump to your favorite opening! Each one includes what changed since the previous version.
The episode name and number listed is the episode in which that opening first appeared. Note that some openings only appeared in one episode.

0:06 - S1 Ep2 Day One

0:51 - S1 Ep3 Going Home
Shot changed: Anthony Edwards, George Clooney, Sherry Stringfield, Eriq La Salle
(Note that in previous opening, clips were not matched with cast names)

1:37 - S2 Ep6 Days Like This
Added: Gloria Reuben
Shot changed: Sherry Stringfield, Noah Wyle, Julianna Margulies

2:26 - S3 Ep1 Dr. Carter, I Presume
Added: Laura Innes
Shot changed: George Clooney, Gloria Reuben

3:16 - S3 Ep9 Ask Me No Questions, I'll Tell You No Lies
Removed: Sherry Stringfield

4:05 - S4 Ep2 Something New
Added: Maria Bello, Alex Kingston
Shot changed: Laura Innes

4:54 - S5 Ep1 Day For Knight
Added: Kellie Martin
Removed: Maria Bello

5:44 - S5 Ep16 Middle of Nowhere
Removed: George Clooney

6:34 - S6 Ep1 Leave It To Weaver
Added: Paul McCrane, Goran Visnjic, Michael Michele
Shot changed: Eriq La Salle

7:23 - S6 Ep7 Humpty Dumpty
Added: Erik Palladino
Removed: Gloria Reuben

8:12 - S6 Ep10 Family Matters
Added: Ming-Na [Wen]

9:02 - S6 Ep12 Abby Road
Added: Maura Tierney
This is the opening with the most cast members (13)

9:51 - S6 Ep15 Be Patient
Removed: Kellie Martin

10:41 - S6 Ep22 May Day
Removed: Julianna Margulies

11:30 - S7 Ep1 Homecoming
Shot changed: Maura Tierney
First opening in 16:9 widescreen

12:20 - S8 Ep4 Never Say Never
Added: Sherry Stringfield

13:09 - S8 Ep5 Start All Over Again
Removed: Erik Palladino

13:59 - S8 Ep11 Beyond Repair
Removed: Michael Michele, Eriq La Salle

14:49 - S8 Ep15 It's All In Your Head
Added: Sharif Atkins, Eriq La Salle

15:38 - S8 Ep16 Secrets And Lies
Removed: Eriq La Salle

16:28 - S8 Ep21 On The Beach
Added: Michael Michele, Eriq La Salle
(Note that S8 Ep22 reverted back to the S8 Ep16 version)

17:17 - S9 Ep1 Chaos Theory
Removed: Anthony Edwards
Added: Mekhi Phifer
Shot changed: Noah Wyle, Laura Innes, Goran Visnjic, Maura Tierney, Sherry Stringfield, Ming-Na, Sharif Atkins

18:07 - S10 Ep3 Dear Abby
Added: Parminder Nagra

18:56 - S10 Ep5 Out of Africa
Added: Linda Cardellini

19:46 - S10 Ep9 Missing
Removed: Paul McCrane
Shot changed: Maura Tierney, Laura Innes

20:36 - S10 Ep10 Makemba
Shot changed: Laura Innes

21:26 - S10 Ep19 Just A Touch
Removed: Sharif Atkins

22:15 - S11 Ep1 One For The Road
Added: Shane West

23:05 - S11 Ep5 An Intern's Guide To The Galaxy
Removed: Alex Kingston
Shot changed: Shane West

23:54 - S11 Ep10 Skin
Removed: Ming-Na

24:44 - S12 Ep1 Canon City
Removed: Noah Wyle
Added: Scott Grimes
Shot changed: Goran Visnjic

25:33 - S12 Ep2 Nobody's Baby
Removed: Sherry Stringfield

26:22 - S12 Ep3 Man With No Name
Some transition shots changed
(This is the last version of this opening until the finale)

27:12 - S13 Ep1 Bloodline
New short opening introduced with new music by Martin Davich

27:21 - S15 Ep22 And In The End
The old opening was brought back for the finale
As compared to the S12 Ep3 version:
Added: Noah Wyle, Laura Innes, Sherry Stringfield, David Lyons, Alex Kingston, John Stamos, Eriq La Salle, Angela Bassett
Shot changed: Parminder Nagra, Linda Cardellini, Scott Grimes
(Note that Sherry Stringfield and Eriq La Salle have their shots from Season 2 & 3 titles, not their most recent ones)

28:12 - Outro
(A cut down, clean version of the Season 1 opening)