Playing with the brightness and contrast with Kodak software, it looks like the writing is upside down. Over the stock market gizmo in the lower right of the tv screen it looks like --big- where the "-" are letters I cannot discern. Maybe it says "big time!" :)
what would work is to find a frame a second or two earlier that doesn't have the X or graphics (but everything else the
same or pretty close), align the two pictures, then subtract the frames leaving a difference frame. there are numerous scientific packages that can do this...