iHeart Ratings: The 2015 iHeartRadio Music Awards on NBC-TV helped power the network to a second-place finish last night (3/29) behind CBS, according to Zap2It.com. The three-hour show attracted 5.22 million viewers (1.7 rating/5 share), which was virtually flat from last year's May 1 broadcast (CAT 5/2). The CBS lineup included Madam Secretary, The Good Wife and Battle Creek. ABC and FOX were third and fourth on the night, respectively. More here.