Memories Are Made of These (11.00 am R4). Involuntary recollection.
Thinking Allowed (4.00 R4). Laurie Taylor talks with the LSE's Richard Freeman about British trade unionism and its recent resurgence.
» Tomorrow's World (7.00 BBC1). Return of new inventions series features an intravenous drip monitor and a new system for evacuating trains after a crash.
» The Money Programme : Smoke Rings (7.30 BBC2). Tobacco smuggling in Britain.
The Disease Detectives (9.00 R4). More on epidemiology and its interaction with public policy.
» Night Waves (9.30 R3). Niall Ferguson talks about his latest book on money and power in the last 300 years.
Kirsty MacColl's Cuba (10.00 R2). Part three: from Castro's revolution to the 1962 missile crisis.
Siege (10.35 ITV). The experience of armed siege.