TV viewing-habit specialist Nielsen has won a pretty major deal in the US, after supermarket chain Aldi announced that it would be expanding a trial project to cover all of its 1,700 stores in the USA. It’s a high-profile win for Nielsen’s retail analytics platform, which analyzes the behavior of shoppers and the impact of in-store advertising, which comes as the company adapts to its quickly shifting core market. Nielsen is best known for its TV monitoring boxes, shipped to participating homes to observe what they watch on television – selling the data gathered to advertisers and TV channels, who then use the viewing statistics to thresh out the ad-spend and revenue. However, the shift from regular TV viewing habits…