BBC America's 'Broadchurch': A strikingly good, strikingly sad mystery drama

If he's lucky, there are two or three times a year when the television critic's job is just too easy. For example: You should do everything you can to watch the exceptionally striking British miniseries "Broadchurch," which was a big hit over there earlier this year and makes its debut here on BBC America Wednesday night. It's among the best detective shows -- and perhaps even among the best dramas -- in several years. It will break your heart and keep you guessing all the way through.