When we were in France we were approached by various productions looking for expat accommodation owners to take part in their shows...Gordon Ramsay's outfit was one - looking to film a series where he visited restaurants owned by expats in France/Spain to help them out. We said a bit fat 'NO THANKS' to that
Then 'Living the Dream' people emailed us, also 'No Going Back', said no to all of them. We'd had contact from others who'd taken part in those shows and had regretted it bitterly. Yes it's free advertising in a way but at the cost of being made to like complete numpties
I would imagine that even if you were the nicest kindest people with the most amazing accomodation, you could be turned into the devil himself with a bit of editiing and daft silly guests being overpicky!