Monday’s primetime was filled with season premieres, starting with Fox’s 9-1-1 and its spinoff 9-1-1: Lone Star. The Season 4 premiere of 9-1-1 delivered a 1.2 in the adults 18-49 demographic, a smidge down from its Season 3 finale, but the action drama did score a night-topping 7 million viewers. 9-1-1: Lone Star (0.9, 5.91M) began its sophomore season on par with its Season 1 finale.