In its second season finale, MTV’s phenom Jersey Shore fell short of the all-time record of 6.7 million viewers it posted earlier this fall. But a total audience of 6.1 million viewers and a 3.1 rating in 18-49 that won the 10 PM hour over the broadcast networks is nothing to scoff at. (Jersey Shore also won the entire night in persons 12-34 with a 6.1) For its second season, Jersey Shore averaged 5.8 million viewers and a 5.7 P12-34 rating to become MTV’s highest rated series ever in persons 12-34.