In September, Acorn TV, North America’s most popular streaming service focused on British international television, features four U.S. premieres, led by the final season of intense, award-winning cop drama 19-2 (Series Trailer) and Aussie legal dramedy NEWTON’S LAW (Trailer); as well as hilarious British sitcom GRANDMA’S HOUSE from Simon Amstell, and Janet McTeer in the …