Back when I was a kid, having grown up and lived very near William Shatner's home in Studio City, I personally recall seeing him without his hairpiece, washing his car in his driveway on some weekend day when I was out and about riding my bicycle around the neighborhood. So I think it's old news to those who were Mr. Shatner's neighbors.
Greg, as a long time observer of the Shatman's hairline, I have to ask - what lies beneath the captain's toupee?
Thinning hair? The odd tuft, as is often mentioned by fellow cast members? Or is he completely bald?
Well, I can only tell you what it looked like in, oh, it would have been about '72 or '73. I'd describe it as thinning and receding. It was a brief glimpse and forty years ago. But my recollection is that it was about like this funny but accurate Photoshopped picture:
(My recollection is that he wasn't cartoonishly bald like Lex Luthor.)
Lord knows what it looks like now.