He's 76 years old now, and his "Stand up" was sitting down....
But he still has it. I've never seen anyone tell a story like Cosby.
He took maybe 15 minutes of real material, and used expressions, timing, and audience participation...to keep it going for almost 90 minutes.
You just have to watch or buy the DVD. Really. Absolute comedy Genius.
He may move a tad slower...but his mind is razor sharp. Today's comics should record his act and study it. You don't get better than this.
I have no idea what he's like as a person, I've only seen him a few times in movie cameos...but Man, can that guy make me burst out laughing.
Maybe Sam Kinison was as good. Maybe.