David Letterman said a farewell after over three decades on TV. I first started watching him when I was in high school and he had a morning show. For me, he was at his best in the mid-to-late-1990s: the following video is an example of the ridiculously hilarious humour of which he was capable. Just joyful and silly. (Unfortunately, he became truly bitter — and not in the good sense — over time, and I stopped watching him. Good analysis at the link.)