How about this (maybe done before? Doubt it tho)
Let’s have a show where they take 10 people, from 10 different countries, and put them in a house together - “real world” style. However, these people don’t necessarily speak each others languages or anything else.
You’ve got a little global cross-section of humanity there, trying to get along. Let’s see what issues come up.
Hey, at least it’s more interesting than the normal “surfer, bum, pimp, lipstick lesbian, flaming gay, nerd” casting they’ve done previously.