Ice Cream : Everyone seems to like ice cream and with the market worth an incredible one billion pounds a year, it would seem to be recession-proof. This programme explores the market and the marketing. There has been an explosion in the number of artisan producers so how do they all compete? And what keeps the big players at the top of their game? What is real ice cream anyway? And, what is the difference between ice cream and gelato?Sheila Dillon presents the programme from one of the UK's best loved ice cream parlours and is joined by expert Robin Weir who has spent the last twelve years updating his book, "Ice Cream, Sorbets and Gelati" - co-authored with wife, Caroline, - and widely recognised as the definitive guide to ice cream.