Sheila Dillon explores the world of the modern British tomato. Great improvements have been made in variety, flavour and quality over the last decade thanks to some technological breakthroughs including computer controlled glasshouses and use of micro-environments, green energy and smart water use. Now many more varieties can be trialled, grown and marketed in the UK. But with the emphasis on quality and flavour rather than quantity, can they ever compete with Spanish imports?Producer: Maggie Ayre.