This week: a vision of the future - how robots are learning to look at chocolates, cars and chips. And the sound of the future - can music sound larger than life? Viewers have their own opportunity to sample 3-D stereo by tuning in to a live link-up with Radio l's Mark Goodier 's Evening Session. With Judith Hann , Howard Stableford, Kate Bellingham and Peter Macann. Producer Jack Weber Editor Dana Purvis