Does anyone know the name of this episode?

I don't have alot of information on this episode, but does anyone know the name of the episode where Dale and Hank are talking in Dale's house and they are reminising about something and Dale looks into the 下一个 room where Joseph is playing a video game and Joseph laughs strangely and Dale says something like "Ahhh....the laughter of a child". Joseph's laugh is also played during the credits.