Game of Thrones ratings are in. But they went down a tick for the first time, with Sunday night’s premiere slipping a tad. The 9 p.m. airing delivered 2.4 million (compared to last week’s 2.6 million). Most of the difference was picked up during the encore airing, with the night’s total finishing at 3.2 million (compared to last week’s 3.3 million).