Bobby relives musical numbers from past episodes, ending with a finale of "If You're Happy and You Know It", when the family is stuck at home during a power outage caused by a rainstorm.
A religion is a belief system with rituals. The missionary kopimistsamfundet is a religious group centered in Sweden who believe that copying and the sharing of information is the best and most beautiful that is. To have your information copied is a token of appreciation, that someone think you have done something good.