Season
- Season 15 2008-09-25
- Season 14 2007-09-27
- Season 13 2006-09-21
- Season 12 2005-09-22
- Season 11 2004-09-23
- Season 10 2003-09-25
- Season 9 2002-09-26
- Season 8 2001-09-27
- Season 7 2000-10-12
- Season 6 1999-09-30
- Season 5 1998-09-24
- Season 4 1997-09-25
- Season 3 1996-09-26
- Season 2 1995-09-21
- Season 1 1994-09-19
- Season 0 2009-04-02
Episode
- Episode 1: Cañon City
- Episode 2: Nobody's Baby
- Episode 3: Man with No Name
- Episode 4: Blame it on the Rain
- Episode 5: Wake Up
- Episode 6: Dream House
- Episode 7: The Human Shield
- Episode 8: Two Ships
- Episode 9: I Do
- Episode 10: All About Christmas Eve
- Episode 11: If Not Now
- Episode 12: Split Decisions
- Episode 13: Body and Soul
- Episode 14: Quintessence of Dust
- Episode 15: Darfur
- Episode 16: Out on a Limb
- Episode 17: Lost in America
- Episode 18: Strange Bedfellows
- Episode 19: No Place to Hide
- Episode 20: There Are No Angels Here
- Episode 21: The Gallant Hero and the Tragic Victor
- Episode 22: 21 Guns
ER Season 12 Out on a Limb
ER explores the inner workings of an urban teaching hospital and the critical issues faced by the dedicated physicians and staff of its overburdened emergency room.
