A new series of dramatic works for solo performance Later by DAVID POWNALL with ' Sit down again, back round the table! You know the little rules which govern this. Yes, a seance in Soviet Russia in 1937 must be controlled by tradition. No new regulations have been issued have they? ' The spirit of Sonia returns to talk to her family 16 years after she walked out of their lives. Directed by ALFRED BRADLEY BBC, Manchester