SEASON PREMIERE: This is complicated, but is worth sorting out. Broadchurch began as a British miniseries, imported by BBC America, starring David Tennant as a detective investigating a murder in a remote coastal town. Then Fox mounted an Americanized remake of it, called Gracepoint, also starring David Tennant – but with an American accent. Now he’s back in Season 2 of Broadchurch, back with his original accent, and a far superior crime drama that will pull you back in, completely, even before the opening credits begin. Olivia Coleman co-stars.