I have this wild-ass theory about Gerald Scarfe's music video for Welcome To The Machine. If you can manage to find it, notice that it cuts off just as the applause begins. Now, listen carefully to the actual song at this point.
A few seconds of muffled voices, then the distinct sound of a car window rolling open before the voices become clear. This is obviously meant to be a limo, tying in with the song's message of the price of stardom.
My opinion is that Scarfe couldn't figure out a satifactory way to represent that part considering what he already had set up, so he ran the last frame over the final moments. Better than nothing, I suppose.