The “Law & Order” universe is one of the biggest and longest running on television.

It all started with “Law & Order,” the brainchild ofDick Wolf.

The series began airing in 1990, but began filming late the prior year (perIMDb).

Law & Order cast, 1990

That’s not to say that there wasn’t any filming going on in the Big Apple.

At the time, the city’s streets were re-created again and again on sound stages in Los Angeles.

The union heard him out and decided to offer up some concessions.

Law & Order: Organized Crime scene

It’s worked for him and the countless other shows that followed suit in the years since.