About 6.6 million viewers tuned in, with a 2.9 rating among adults 18-49, edging out second-place finisher ABC’s Once Upon a Time (7.4 million, 2.5) in the demo. Granted, that’s nowhere close to the Simpsons and Family Guy crossover that kicked off the season. (That hour-long episode was a 4.5 in the demo.) But the move still spiked Simpsons‘ ratings by 45 percent from last week.