@PororoManon said:
TV Search by specific country and genres
Can I search TV Series by country and genres?
something like search/tv?with_genres=18&with_origin_country=KR&query="title".
so, search result will show only TV series from Korea with drama genre.
Thanks!

No. The possible filters are those in docs.
https://developer.themoviedb.org/reference/search-tv
These filters work in Discover.
https://developer.themoviedb.org/reference/discover-tv
&with_genres= and &with_origin_country=

There is an undocumented filter for Discover that is being tested for Movie.
Filter text from the title and any other fields that I don't remember.
I don't know if it works for TV. I never tried.
&with_text_query=

There is an undocumented filter for Discover that is being tested for Movie.
Filter text from the title and any other fields that I don't remember.
I don't know if it works for TV. I never tried.
&with_text_query=

This work!!!

sometimes result not show. at first try, show no data. after that I try to remove with_genres or origin_country, I got some result but without specific genre or country. I try to figure out what I missed. after couple trial and error, I can send request with full params with_genres, origin_country ** and **with_text_query. Dont know what happend, I just send spam the request LOL

what happend, I just send spam the request LOL

when I use with_text_query=Move to Heaven result show no data, but if I use move or heaven it shows expected result. but with other title, work really well.

@PororoManon said:

what happend, I just send spam the request LOL

when I use with_text_query=Move to Heaven result show no data, but if I use move or heaven it shows expected result. but with other title, work really well.

Well, like I said, it's in development for movies.
Probably for series the filter will need more adjustments.
I hope you can resolve your problem.