September 16, 2012 ratings: Last night, ABC won in both the coveted demographic and total viewership with college football. A rerun of NBC’s The Voice was the second-highest in the demo (at 10pm) and an encore of 48 Hours Mystery on CBS held second place in viewership (also at 10pm).

On ABC, College Football: Notre Dame at Michigan State drew a 1.5 rating in the 18-49 demographic with 4.85 million total viewers.

On FOX, another game — College Football: USC at Stanford — attracted a 1.0 in the demo with 2.79 million viewers.

On NBC, a rerun of Monday’s two-hour edition of The Voice brought the network a 0.9 demo rating and 3.36 million. At 10pm, an encore of the Tuesday airing drew a 1.2 in the demo and 3.95 million viewers.

Finally, on CBS, it was also three hours of repeats. They were NCIS (0.7 rating and 4.23 million), Hawaii Five-0 (0.6 in the demo with 3.87 million), and 48 Hours Mystery (0.8 rating and 4.41 million).

What do you think? Are you surprised by the big difference in numbers between the two games? What were you watching last night?