Andrew Rawnsley previews the week's political events.
10.45 The SDP Diaspora
1/2. Mark D'Arcy examines how "refugees" from a defunct political party of the 1980s ended up at the top of the three major parties a decade later - from Tony Blair 's
Downing Street, to the heart of the Conservative Central Office campaign machine.
Editor Terry Dignan The SDP Diaspora repeated on Wednesday at 8.45pm