My guess is CNN’s numbers are actually lower; my bet is they count people sitting in airport boarding areas waiting for flights.
For reasons I’ll never understand, every airport has stupid CNN on...except Idaho Falls which often has FOX News in both boarding areas.
We were in Santa Fe airport and they had the communist news network on in about half the boarding areas. The other areas had Fox on the monitors. Guess which areas had people standing to watch? It dang sure wasn't the ones with cnn.