When I watch Today every morning, I wonder how some of the people that are standing in Rockefeller Plaza are able to bring signs that are blatant advertisements. I figured there was someone at the entrance to the taping area that would inspect each sign and reject ones that are inappropriate.

Turns out that's true, but Ad Age says that what's in the inappropriate category is less than you think. All the staff looks for is inappropriate language and readability. In fact, NBC doesn't seem to mind that a lot of companies are getting a ton of free advertising by asking people to bring signs and display them, hoping to get a lingering glance or even one of the hosts to come over and speak to someone reading the sign.