some years ago the BBC's Bang Goes the Theory did this but using 100 cyclists
They did indeed, and as far as it went, it was a good piece of educational TV. Helping people visualise,
quantitatively, how much energy their normal day-to-day activities require was really worthwhile IMHO.
Unfortunately the show ended rather abruptly, and missed out the simple most obvious extension to the experiment. Deliberately so, IMHO.
For those who didn't see the show: the basic premise was that a family was invited to live in the home for a week, and although the audience knew where the home's electricity was coming from, the occupants didn't. Seeing, in terms of human effors, just how much energy is required for appliances like the kettle and (especially) the electric shower was quite the eye-opener.
At the end of the show, of course, there was the big reveal, laughs and smiles all round, with the entirely predictable subtext that the test subjects (and everyone watching, of course) should go off and consider ways to use less energy.
What they failed to do, though, was extend the experiment to see just what the test subjects could actually do during a second week in the house to substantially reduce their energy needs. Just how much difference does turning off a phone charger make? Is it really worth turning off a light in the bedroom while you go for a shower? What do you
really have to do in order to save the poor guys on their bikes?
I strongly suspect that not doing this obvious part of the experiment was deliberate. "Go and think how you might save energy" is a nice, vague, politically fashionable take-home sound bite. "You need to face up to the reality that you'll be cold in winter and must stop taking showers" is not.