British supermarket giant Tesco will next month relaunch its music download store to go MP3 and add movies, games and TV shows. The supermarket already operates TescoDownloads.com but the limited repertoire is restricted to Windows Media format. In May it will relaunch as Tesco Digital, offering 3.3 million tracks, Telegraph.co.uk said. Supermarkets have helped drive big UK music sales through stacking discounted mainstream albums in-store. But those are impulse purchases for grocery shoppers - Tesco’s big challenge will be driving customers to its new site. More detail at our sister site paidContent:UK...