Angela Lansbury hosts this look at "Downton Abbey" that recaps the first two seasons and previews the third. Creators Julian Fellowes and Gareth Neame discuss the impetus for the show; and Hugh Bonneville discusses Robert, the Earl of Grantham, and Robert's relationship with his mother. Other interviews include "Masterpiece" executive producer Rebecca Eaton; and cast members Lesley Nicol (Mrs. Patmore), Sophie McShera (Daisy) and Jim Carter (Mr. Carson).