Where was Choujuu Sentai Liveman filmed?
Television series
Choujuu Sentai Liveman (1988–) was filmed in Sportsland SUGO and Kamogawa Sea World, 2 places named in its Japanese Wikipedia’s スタッフ section, 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.
Part of the Super Sentai Series
Places per Japanese Wikipedia's スタッフ section
Japanese Wikipedia’s スタッフ section names 2 places. Each links to the sentence that says so.

