The BBC and the ITV companies used to disagree cordially when it came to audience figures. But recently they joined forces and turned to electronics to measure the ratings. Fred Harris finds out if the numbers are more reliable. The Veterans Association runs hospitals in the US for members of the armed forces injured in action. Lesley Judd investigates a project at Stanford University where engineers and philosophers are working with the VA to create a robot that will be of real use to disabled ex-servicemen.