The BBC had multiple families living for a year in Iron Age conditions back in the 1970s:

https://en.wikipedia.org/wiki/Living_in_the_Past_(TV_series)

I can just remember watching it as a child.

There is a series of interviews (on the Lindybeige YouTube channel) with John Rossetti who was one of the family members.

https://youtu.be/SI6wDO2RhTQ?si=PDV1H9ylzU3_We1H

One bit that stands out to me is how they were invited to a number of lavish parties after the experiment ended and they didn't appreciate the richness of the food, his greatest desire was a plain potato.