 Each covers a period of ten days, one for each year, with a counter over the front door showing the current year.New devices and amenities - as well as clothing and interior designs - are provided as appropriate as days go by (for example, a home computer in 1982, and a VCR in 1984), and sometimes removed as they go out of date.The programme follows the family's adaption and reaction to being thrown back in time to a more technologically sparse period; and how their pastimes, social interactions and attitudes change in response to both landing in the early 1970s and coming up-to-date.