Ah, new technology. It can redeem old technology. How brilliant it that? At present I am indulging in listening (already three times) to the scene where Gloucester (Richard III to be) woos Lady Anne -- it's from a production of a few years ago starring Douglas Henshall in the lead role and Jasmine Hyde as Lady Anne.
Although he mostly plays it as 'English', the further into this scene he gets, the more frequently the accent slides forth (which certainly works for me).