A commercial for the Nissan Juke parodying action movies. At one point, the "hero" looks directly at the camera and says, "Professional driver, closed course," right as said disclaimer appears on the bottom of the screen.
A commercial for The Big Bang Theory episodes showing on TBS involved Sheldon noticing the TBS logo on their table and having a conversation with Leonard about it. Leonard eventually tells Sheldon that "They aren't supposed to know they're on a TV show."