Shatner does look great. A great example of a very short full cap. The only thing I think he needs is a little more recession built in for a guy his age. Overall though it is great. He covers the front hairline well and the side hairline really looks great. I wear a short full cap and I have always felt that the side hairline is the toughest to get right.
Not sure how he kept a straight face during the interview though...