LADIES OF LETTERS RADIO ADAPTATION Special delivery of late-life squabbling

After a long and hugely popular run on Radio 4, a TV version of this sitcom was shown in 2009, and was followed a year later by the second and last series. In roles originally taken by Prunella Scales and Patricia Routledge, Maureen Lipman and Anne Reid (above right) play Irene and Vera, ageing women who conduct their often frosty friendship via the Royal Mail. Acorn TV, from Monday