Glee kicked off its final run on Friday night, shifting to the new night with a two-hour premiere. But the ratings were disappointing, as the series was down from its last season premiere on a Thursday — though it did hold steady with its finale. Back-to-back episodes averaged a point-7 rating among adults 18-to-49 and 2-point-3 million viewers. CBS’ block of Undercover Boss, Hawaii Five-0 and Blue Bloods held steady with their recent outings.