Total viewers for the second night of the debate for all three networks — NBC, MSNBC and Telemundo — rose to a Nielsen-measured 18.1 million, up from 15.3 million from the first night.
Across the three networks, there were 5.3 million adult 25-54 viewers and 4.4 million adult 18-49 viewers in total for NBC, MSNBC and Telemundo.
On the NBC broadcast network, the second night pulled in 10.6 million viewers, while MSNBC had 6.7 million; and Telemundo came in at 840,000. On NBC, the debate posted a 2.15 rating among 18-49 viewers, with MSNBC at a 1.03; and Telemundo at a 0.25.
During the two-day event, 36 airings of 28 spots ran on MSNBC, with NBC at 28 airings coming from 20 spots, according to iSpot.tv. In addition, the TV research company said Telemundo had 54 spots, airing 146 times in total national/regional airings.
Pharmaceutical antihistamine medication Xyzal had five collective advertising airings for its one creative. This was followed by The New York Times with four airings from its two spots. The Alzheimer’s Association was at four airings from one creative, and Liberty Mutual was at three airings.
Those with two airings included WeatherTech, Mazda, Warby Parker, McDonald's, Showtime and Golden Corral.
Those with one airing included ExxonMobil, Progressive, MiraLax, ADT, Dr. School’s, QuickBooks and BP.
Industry estimates are that some $10 million was spent in national-regional advertising for the entire two-day event across NBCUniversal networks.