She Was Horrified
The broadcast was going seamlessly at first. When the camera panned out, Costanza adjusted her seating position to be more comfortable. She noticed her producer frantically gesturing at the table. As she glanced down, she realized with horror what the problem was.
As Costanza had adjusted her position, she had uncrossed her legs as the camera had panned out. From the panned view, since the desk was translucent, she had inadvertently given every viewer a flash of her underwear beneath it.