I have a subscription to the site rulesofthumb.org in my RSS reader. One that just came up today is:
Look good, sound good, and do something good. To make a steady living, you need all three. To be on television, you can get away with only two.
Sounds about right to me for the TV side of things. I'm not sure I agree with the first part though. For the site itself, the User Interface could use some work. All the links on the home page to individual rules are designed to pop up into their own windows. This effectively removes the ability to link to individual rules/pages. In turn, this will result in less traffic for their site.