Kornheiser should be commenting on sports, not the dress of others. Actually, he can stop commenting on sports as well, as far as I'm concerned.
I would say, Brighteyes, that, no, he would not have been suspended had he said something adverse about a male colleague. There is and has been a double-standard since the beginning of broadcasting. It's well known that as male anchors get older, they get "distinguished." As women anchors get older, they just get older. There is major pressure for them to do their best to maintain their looks.
I agree with most of what Pariah has said, though that doesn't surprise me considering our similar backgrounds. This really has nothing to do about being PC. It's about being smart. Don't badmouth the people you work with. Hell, I learned that when I was 14.