Las Vegas TV Ratings: ESPN2’s live telecast of the NASCAR Nationwide Series race at Las Vegas Motor Speedway on Saturday, March 10, earned a 1.7 household coverage rating (1.5 U.S. rating), averaging 2,502,606 viewers, according to the Nielsen Company. Last year’s Las Vegas race, which was run a week earlier on the calendar, aired on ABC and earned a 2.2 rating.(ESPN)(3-13-2012)