At the beginning of the second season, a longer intro was introduced that included all of the characters in the show, and not just the doctors. It was quickly scuttled when NBC decided to extend the length of the episodes in an attempt to win more viewers. See more
The x-ray with the show's title shown in the beginning is turned the wrong way: the heart should be seen on the right hand side. This was an intentional mistake put in by creator Bill Lawrence
to represent the core idea of the show: young doctors in over their heads. Bill Lawrence reminds viewers that this goof was completely intentional in interviews, DVD commentaries, and virtually any other available opportunity. See more
You are, in fact, a perfectly healthy 26-year-old doctor who keeps whining about how horrible his father was.
Well, he did some considerable emotional damage, so...
Every one of our parents does considerable emotional damage, and from what I've heard, it just might be the best part of being a parent. Now, if some guy ever does put a ring on your finger and you're lucky enough to pop out a youngster, I'm sure you'll understand. But for now, believe me when I tell you I wouldn't care if this was ...