Private Practice Season 4 Episode 6 (Private Practice s04e06) with title “All In The Family” aired on Thursday, October 28th 2010 at 10:00 pm via ABC Network.
Here is summary for Private Practice Season 4 Episode 6 :

Addison and Sam’s relationship is strained when they disagree over the treatment and safety of a comatose patient who has become pregnant, while Pete and Charlotte are faced with the ethical dilemma of revealing the HIV status of a patient who has been in a serious auto accident.