In episode one the family enter the 1950s, so it's goodbye to their flat screen TV and hello to a piano, darning and a pipe to keep them amused. It's the era of formality and austerity, as many families bought little more than fags and a spool of thread from week to week.
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.