First instance of House hanging out in the Coma Guy's room.
After Lisa Cuddy hires a male secretary, House asks "what's the matter--J-Date not working out?" J-Date is a popular Jewish dating website.
Cuddy's password for her computer is "partypants"
The five stages of dying House talks about are from a model by psychologist Elizabeth Kubler-Ross, who proposed that people experience five stages of emotion as a response to grief: denial, anger, bargaining, depression, and acceptance