Part of it was nostalgic as the crew searched for functioning devices. Other parts were laughable as the family dressed and "lived" the role from each decade. Of course Mom and Dad remembered those decades but the kids were experiencing them for the first time.
The episodes were filmed in Britain so some of the cultural elements may seem foreign to American audiences. Come to think of it, most of the show will seem foreign to anyone born after the turn of the century.
Teachers may want to reference the episodes for Sociology, Computer History, or even just recent history.