12:00Ladies of LettersLadies of Letters Go GreenOmnibusBBC Radio 4 Extra Duration: 1 hour, 15 minutes Sun 26th Jun 2011, 12:00 on BBC Radio 4 ExtraMore electronic correspondence from the tempestuous twosome. Starring Prunella Scales and Patricia Routledge.GenresComedySitcomsBrandLadies of LettersSeriesLadies of Letters: Ladies of Letters Go Green Source: BBC Online