Barbara Walters, 93
Barbara Walters made history in 1974 when she became the first female co-host of a news program in America. Just two years later, she made history again by becoming the first co-anchor of a network news show. For 25 years, she was featured as the 20/20 host, but then moved onto daytime television as the creator and host of The View.
The last time she was on our screens, it was December 2015. She interviewed the person who would become the U.S. President that year.