system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why do so many American TV shows & movies film in Canada? Does Canada look more "American" than the actual USA?
gpt
Our urban environments look identical to yours.... and there are numerous companies in Toronto, Vancouver that specialize in providing cars, police cruisers, ambulances etc. with big American city decals, providing USA Today newspaper kiosks, USPO mail boxes etc... our provincial and federal governments give huge tax breaks to film and tv production companies, our major cities have world-class film studios, our actors and actresses already can do most American style accents and for clothing extras, really we wear the same shit that you guys do. 

When a US film crew needs to film a downtown city street in say New York or Chicago, both of those fine cities have film and tv relation offices. To close a major city street costs you $$$$. But.. with the exception of architectural or film purist nerds who can actually spot the difference, a downtown Toronto or Vancouver street looks enough alike that it makes no difference. And to close one of our streets will cost a lot less. Oh, and with the exchange rate being what it is, American productions can afford it that little bit extra more.