Dear, https://api.themoviedb.org/3/tv/popular?api_key=THEKEY&language=en-US&vote_count.gte=1000&country&vote_average.gte=6&page=1&with_genres=&certification=12&certification_country=FR

I am requesting Tv shows with the certification of 12 but nothing changes, nothing happens, I keep getting the same results by applying any certification filtering in Postman, But it works for movies. I mean when I do this for movies, the results change. Why and How can I filter by certification for tvshows? thanks.