House is good but really long. Could have cut a couple seasons off. The medicine is horrible though so just watch for Hugh Laurie.
Scrubs is just wonderful. I can watch it over and over. A lot of aspects of it I hear are pretty realistic.
Royal Pains is really good too. A little less focus on the medicine than the other shows, but the medicine isn't just outrageous like on House. It's decent, and the story line is great. I really enjoyed that one.