Memorializing his friend Robin Williams on the recent Emmy Awards telecast was "the hardest thing I've ever had to do," comedian Billy Crystal mused Tuesday, reports Newsday contributor Frank Lovece. "It was only two weeks to the day of the Emmys that everything had happened," Crystal, who grew up in Long Beach, told Matt Lauer on "Today." "They called me and said would you do it and I said of course. But then came the task of doing it right and being sort of the spokesman for everybody in front of 17 million people. And, you know, he's my closest friend, and to do it with some humor and only in a short period of time that I have to do it [in] was difficult."