I think the fourth hour (having only seen it once for about 30 min)...is for west coastal women over the age of 30 only. It would shock me if they have more than 300,000 viewers on an average day.
Nearly two million per day. Hoda and Kathie Lee were a popular duo. https://deadline.com/2018/11/megyn-kelly-exit-boosts-today-ratings-9-and-10-am-1202501385/