30 Rock has averaged a 3.1 rating, 9 share in adults 18 - 49 and 6.6 million viewers overall in most current averages for the season through November 7. It s one of the most upscale and most time-shifted comedies on the schedule, tying for the 2 most upscale shows among all primetime series on ABC, CBS, NBC, Fox or CW in its concentration of adults 18 - 49 living in homes with $ 100,000 - plus incomes (46 percent above average), and tying for the 3 biggest time-shifting increase among half-hour comedies when going from live plus same day to live plus seven day ratings (plus 27 percent).