This is really a punch to the gut. I guess most of us assumed he hadn't been well for some time, but his death is so sad, nonetheless.
Osborne really carried TCM on his back for many years. He was the face and personality of the place we all call home, in one way or another. Robert had the nearly precise mix of pleasant, self-effacing on-camera charm along with his vast off-camera, institutional knowledge of the industry. He will be sorely missed.