Where was Why Did You Come to Japan? filmed?
TV Tokyo program interviewing foreigners in Japan
Why Did You Come to Japan? (2012–) was filmed in Kansai International Airport, Narita International Airport and Chubu Centrair International Airport, 3 places named in its Wikipedia article, in Japan. Wikidata records no filming location for it at all, so the article is the only recorded source. Each place says where its claim comes from.
Places per Wikipedia's article
The Wikipedia article names 3 places. Each links to the sentence that says so.

