On Thursday, CNN reported a preliminary Nielsen rating of 14.7 for the event, which means 1 in 7 American households watched the show, and the network is calling these audience figures “NFL-level ratings.”

These are just estimates, of course, and they will likely be adjusted by the time the final figures are released, but CNN estimates the final tally could be about 20 million viewers. This doesn’t beat out Fox’s viewer numbers for the first GOP debate, which received a record-breaking 24 million viewers, but it shatters CNN’s own records.

Before this, the most viewers the network received for a presidential debate was in 2008 with 8.3 million. Its most watched television program in the network’s history was a 1993 episode of Larry King Live during which Al Gore and Ross Perot debated NAFTA, which was watched by 16.8 million people.

CNN also set a record for live streaming with 921,000 simultaneous viewers at the halfway point of the debate (9:45 p.m.). CNN Money writes that it was “by far the biggest audience a primary debate has had on the Internet,” likely helped by the fact that this was the first debate to be live streamed for free.

It was a particularly interesting debate to watch, considering the two leading candidates, Donald Trump and Ben Carson, could not have more different dispositions. Carly Fiorina, who fought hard to be included in Wednesday night’s debate, had no problem grabbing some of the spotlight for herself.