Am I the only one that thought he looked bad? His head kept bobbing up and down and sometimes it seemed like his speech was a bit slurred.
He may not have had much time to prepare... but I too thought he looked a bit off (and not due to age, but his delivery).
It's well known that Seth McFarlane is a Star Trek fan, having incorporated quite a few Star Trek references into his work. So, it was pretty understandable (and hilarious) for Shatner to show up on screen in uniform. It had a lot of potential, but to me it fell kind of flat.