The Met’s second season of “Live in HD” continues on Saturday, March 15 at 1:30 pm/est with the new production of Britten’s Peter Grimes. Tenor Anthony Dean Griffey sings the title role, Patricia Racette is the kindhearted Ellen Orford, and Anthony Michaels-Moore is Balstrode. Donald Runnicles conducts. Intermission features include live interviews hosted by star…