In 1978, the first reality show was made in Britain. It emphasized cooperation, community, working out problems together, self-control for the good of all. It was called "Living in the Past."
“In 1978 12 adults and 3 children were selected from around 1000 volunteers for the first 'reality tv' series by living for a year on an Iron Age farm as Iron Age people. This film looks back at the original shows and what has happened to them in the 30 years since then.” The hour-long program is on YouTube, in six parts.
This is a fascinating documentary which shows how these strangers lived together for a calendar year under Iron Age conditions of about 2000 years ago, showing how Celtic Britons lived in a small village around the time the Romans first invaded Britain.
Such "living history" experiments have taken place a number of times in the last decade or two. Here are two others, set in later periods in Britain, for comparison.
1620 Welsh Farm: “Tales from the Green Valley”
1880s Shropshire, England: “Victorian Farm”